Thursday, August 08, 2019

Latest artificial intelligence Engineering

Latest artificial intelligence comes concepts for Engineering Students

The golem is Associate in Nursing intelligent robot and also the initial robots area unit made-up by “Czech dramatist Carel Capek” within the year 1920. artificial intelligence may be a branch of Associate in Nursing engineering that deals with coming up with, making and operations. The word artificial intelligence were derived from the term golem. In gift days, there area unit few kinds of robots area unit offered like serial kind, parallel kind, walking kind and mobile kind robots. The elements of the artificial intelligence principally comprise power offer, controllers, grippers, manipulators and finish effectors.
Latest artificial intelligence comes concepts for Engineering Students
When we trust a golem, the first issue strikes our mind is that imitates somebody’s. However, in real terms, there’s no actual definition of a golem. But, there area unit some basic characteristics that a golem got to have like intelligence, sensing, energy and movement, etc. Some robots do the work by themselves to perform specific tasks. But, various robots want a facilitate fro masses. As a result, these robots area unit dependent. artificial intelligence comes area unit used utterly in numerous applications like medical ,space communication and military applications
Latest artificial intelligence comes for Engineering Students
Nowadays, many engineering students area unit showing heaps of interest on robotic comes. They produce heaps of interest as compared to different natural philosophy comes. In education level, these comes on artificial intelligence area unit very hip, {they area unit|they're} are line following golem, choose and place golem, hearth fighting, wall pursuit, golem and Hexapod etc. These comes on artificial intelligence for engineering students can useful whereas doing the apply. So,we tend to advise engineering students to pick out from these artificial intelligence kits as these area unit  capable of operational for them.

War Field Spying golem victimization visual modality Wireless Camera

The main intention of this project to style a robotic vehicle victimization RF technology  and wireless camera, wherever RF technology is employed for remote operation and wireless camera is employed for observance functions. The golem beside a camera will transmit video with visual modality capabilities. this kind of golem is useful within the war fields for the aim of spying.An 8051 microcontroller is employed for the specified operations.
War Field Spying Robot with Night Vision Wireless Camera

This project  uses an evening vision camera  to capture pictures even in dark places and transmits wirelessly to a TV receiver unit. These robots area unit employed in military applications like causing the knowledge to the management unit and spy on enemy lands. This golem is controlled by victimization RF communication with a collection of push buttons.
Furthermore,  this project may be designed victimization DTMF technology. victimization this technology we will management the robotic vehicle by employing a cellular phone. Compare to RF technology, this technology has a plus over a protracted communication vary.

Auto railroad line Train that Shuttles between 2 Stations

The main goal of this project is to demonstrate the technology, that employed in a railroad line train movement. This project is employed in several developed countries. The railroad line train is provided  with a controller, that permits the automated running of the train from one station to a different.
Auto Metro Train to Shuttle between Stations

This machine railroad line train project is intended with Associate in Nursing automatic begin and stop mechanism. thus  that the railroad line train stops at a selected time and starts when a selected time. It contains of Associate in Nursing automatic mechanism to open and shut the door and it counts the quantity of persons whereas getting into the train.

Track Sensing Robotic Vehicle Movement

The main aim of this project is to style a golem, that tracks a selected path. the trail may be a black lane on a white floor. Track sensing robotic vehicle is getting used in a very kind of applications from being a guide at public places for automatic vehicles. Here, this robotic vehicle is intended by a try of sensors that is formed to maneuver on a ee black lane perceived for each motors.
Track Sensing Robotic Vehicle Movement
This track sensing robotic vehicle contains of 2 motors, DC supply. These 2 motors area unit controlled by a semiconductor, that acts as a switch. the 2 sensors, every sensing element as well as Associate in Nursing IR light-emitting diode and a photograph diode is placed underneath the circuit. once the 2 sensors sense the white floor, then the motors provide the rotation consequently.At the turning, on encountering the black path, one in every of the motors stop rotating with the input of the sensing element. The working rule of the sensing element is, once IR light-emitting diode produces light-weight on the white floor, then it gets mirrored. once the mirrored light-weight drops on the pic diode, it decreases its resistance to manage the conductivity of the motor switch.

Metal Detector Robotic Vehicle
The main object of this project is to style a robotic vehicle to sight metals and land mines. Land mines area unit unstable devices that area unit set underneath the bottom and it's venturesome to sight those manually victimization metal detectors. during this project, a detector is embedded within the golem which is controlled by victimization RF communication.
Metal Detector Robotic Vehicle

At the transmitter finish, the quantity of push buttons is interfaced to the microcontroller to run the golem in a very specific motion.When the button is ironed, then the signal is distributed to the microcontroller that sends the a binary knowledge to the button. The encoder is employed to convert parallel knowledge to serial knowledge and this command is transmitted victimization RF module.

At the receiver finish, this signal is decoded by the decoder.Based on the signal, the microcontroller provides connected signals to the motor driver to drive the motors. in order that the golem moves in desired motion. A detector is embedded within the golem circuit that detects the metal and provides a sign by employing a buzzer.

RF Controlled Robotic Vehicle with a irradiation Arrangement
This project is intended to manage a robotic vehicle by victimization RF technology. an occasional  power optical device light-weight is interfaced for demonstrating the probabilities of ending an overseas object by its beam. Associate in Nursing 8051 microcontroller is employed for the specified operation.
RF Controlled Robotic Vehicle with a irradiation Arrangement

At the transmission finish push buttons area unit wont to send directions to the receiver to manage the movement of the golem either to maneuver right, left forward or backward. At the receiving finish, 2 motors area unit interfaced to the microcontroller wherever they're used for the movement of the vehicle.

The RF transmitter acts as Associate in Nursing RF remote that has the advantage of adequate vary (up to two hundred meters) with correct antenna, whereas the receiver decodes before feeding it to a different microcontroller to drive DC motors via motor driver IC for necessary work.

A optical device pen is mounted on the golem body and its operation is dispensed from the microcontroller output through acceptable signal from the transmission finish. The optical device light-weight used is simply for demonstration purpose and not a strong one.

Further, this project may be increased victimization DTMF technology. victimization this technology we will management the robotic vehicle by employing a cellular phone. This technology has a plus over long communication vary as compared to RF technology.

Some a lot of Latest artificial intelligence comes concepts for Final Year Engineering Students
Latest artificial intelligence project concepts for final year engineering students are listed here.
                                            coming soon

  • Ultrasonic Obstacle perceived Robotic Vehicle
  • Robotic Vehicle Movement By cellular phone
  • Robotic Vehicle Operated by a TV Remote
  • Fire Fighting golem Remotely Operated by golem Applications
  • Pick N Place Robotic Arm and Movement Controlled by golem Wirelessly
  • Voice Controlled Robotic Vehicle with Long Distance Speech Recognition
  • Line Following Robotic Vehicle
  • Fire Fighting Robotic Vehicle
  • ‘Pick N Place’ with Soft Catching Gripper
  • Line following Robotic Vehicle victimization Microcontroller
  • Cell Phone Controlled Robotic Vehicle
  • IR Controlled Robotic Vehicle
  • Touch Screen based mostly Remote Controlled Robotic Vehicle for Stores Management
These area unit the attention-grabbing latest artificial intelligence comes supposed for final year engineering students. within the tutorial level of artificial intelligence comes victimization microcontroller  or robotic kits area unit terribly illustrious. Thus, these golem comes are going to be quite useful for college kids. except for this, any queries concerning these comes or straightforward artificial intelligence comes for beginners you'll provide your valuable suggestions by commenting within the comment section below.


Wednesday, August 07, 2019

Three part Induction Motor

Three part Induction Motor Construction Three part Induction Motor:

             The 3 part induction motors area unit the foremost wide used electrical motors within the trade.They run at primarily constant speed from no-load to full-load.However, the speed is frequency dependent and consequently, these motors aren't simply custom-made to hurry management.We typically like dc motors once giant speed variations area unit needed. 

 withal, the 3-phase induction motors area unit straightforward, rugged, low-priced, simple to take care of and may be factory-made with characteristics to suit most industrial necessities.In this, we tend to shall discuss working rule of 3-phase induction motors.
working rule of 3-phase induction motors.

 like several motor, a 3-phase induction motor features a stator coil and a rotor.The stator coil carries a 3-phase winding (called stator coil winding) whereas the rotor carries a short-circuited winding (called rotor winding). solely the stator coil winding is fed from 3-phase provide.The rotor winding derives its voltage and power from the outwardly energized stator coil winding through magnetic attraction induction and thus the name.

            The induction motor is also thought of to be a electrical device with a rotating secondary and it will, therefore, be delineate as a “transformer type” ac machine within which electricity is born-again into energy.

Construction  of 3 part Induction Motor:

            Figure 8.1 shows the development of 3 part induction motor. A three part induction motor has 2 main components (i) stator coil and (ii) rotor.The rotor is separated from the stator coil by alittle air-gap that ranges from zero.4 millimetre to four millimetre, betting on the ability of the motor.

1. Stator : 
Three part Induction Motor Construction FIG.(8.1)
Three part Induction Motor Construction

         It consists of a steel frame that encloses a hollow, cylindrical core created of skinny laminations of atomic number 14 steel to cut back physical phenomenon and eddy current losses. variety of equally spaced slots area unit provided on the inner boundary of the laminations.[See Fig.(8.1)].The insulated connected to create a balanced 3-phase star or delta connected the circuit.

         The 3-phase stator coil winding is wound for an exact range of poles as per demand of speed.Greater the amount of poles, lesser is that the speed of the motor and vice-versa.When 3-phase provide is given to the stator coil winding, a rotating magnetic field(See Sec. 8.3) of constant magnitude is made.This rotating field induces currents within the rotor by magnetic attraction induction.

2. Rotor:

The rotor, mounted on a shaft, could be a hollow laminated core having slots on its outer boundary.The winding placed in these slots (called rotor winding) is also  one of the subsequent 2 types:

(i) cage kind                             (ii) Wound kind

(i) cage rotor: It consists of a laminated cylindrical core having parallel slots on its outer boundary.One copper or metallic element bar is placed in every slot.All these bars area unit joined at every finish by metal rings known as finish rings.

            This forms a for good short circuited winding that is indestructible. the complete construction (bars and finish rings) resembles

a cage and thus the name.The rotor isn't connected electrically to the availability however has current induced  in it by electrical device action from the stator coil.

            Those induction motors that use cage rotor area unit known as cage induction motors.Most of three part induction motors use cage rotor because it features a remarkably straightforward and sturdy construction sanctioning it to work within the most adverse circumstances.
            However, it suffers from the disadvantage of a coffee beginning torsion.It is as a result of the rotor bars area unit for good short-circuited and it's impracticable to feature any external resistance to the rotor circuit to possess an oversized beginning torsion.
otor circuit to possess an oversized beginning torsion.

(ii) Wound rotor: It consists of a laminated cylindrical core and carries a 3-phase winding, the same as the one on the stator coil [See Fig. (8.3)].The rotor winding is uniformly distributed within the slots and is sometimes star-connected.The open ends of the rotor winding area unit brought out and joined to 3 insulated connections mounted on the axis with one brush resting on every slip ring.

           The 3 brushes area unit connected to a 3-phase star-connected variable resistor as shown in Fig. (8.4).At beginning, the external resistances area unit enclosed within the rotor circuit to allow an oversized beginning torsion.These resistances area unit bit by bit reduced to zero because the motor runs up to hurry.
The 3 brushes area unit connected t
 The external resistances area unit used throughout beginning amount solely. once the motor attains traditional speed, the 3 brushes area unit short-circuited in order that the wound rotor runs sort of a cage rotor.                                   

Working Principle of 3 part Induction Motor:

Speed of rotating magnetic field:

             The speed at that the rotating force field revolves is termed the synchronous speed (Ns).Referring to Fig. (8.6 (ii)), the time instant four represents the completion of one-quarter cycle of electricity Ix from the time instant one.During this one-quarter cycle, the sector has turned through 90°. At a time instant pictured by thirteen or one complete cycle of current Ix from the origin, the sector has completed one revolution.

             Therefore, for a 2-pole stator coil winding, the sector makes one revolution in one cycle of current.In a 4-pole stator coil winding, it may be shown that the rotating field makes one revolution in 2 cycles of current.In general, fur P poles, the rotating field makes one revolution in P/2 cycles of current.
Therefore, for a 2-pole stator coil winding

  The speed of the rotating force field is that the same because the speed of the generator that's provision power to the motor if the 2 have an equivalent range of poles.Hence the magnetic flux is claimed to rotate at synchronous speed.

Three part Induction Motor Advantages:

(i) it's straightforward and rugged construction.

(ii) it's comparatively low cost.

(iii) It needs very little maintenance.

(iv) it's high potency and fairly sensible power issue.

(v) it's self beginning torsion.

Three part Induction Motor Disadvantages:

(i) it's primarily a continuing speed motor and its speed can't be modified

(ii) Its beginning torsion is inferior to dc shunt motor.

 you have got learnt 3 part Induction Motor Construction .If you have got any queries you'll email North American nation at us


Tuesday, August 06, 2019

Control Robotic automobile With Voice

Control Robotic automobile With Voice

This project describes the implementation of a voice-controlled robotic automobile exploitation Arduino. during this project, the user provides specific voice commands to the mechanism through associate degree golem app put in on the smartphone. At the receiving aspect, a Bluetooth transceiver module receives the commands and forwards them to the Arduino on the robotic automobile.

Arduino controls the movements of the mechanism consistent with received commands. The mechanism moves forwards, backwards, left and right, and stops consistent with the voice commands forward, backward, left, right and stop, severally. The authors’ model of the voice-controlled robotic automobile is shown in Fig. 1.
Control Robotic automobile With Voice

The system consists of a transmitter (Android smartphone) and a receiver (robot). Block diagrams of the transmitter and receiver sides ar shown in Figs two and three, severally.
Screenshot of the house screen of Voicecontrol app is shown in Fig. 4.
Control Robotic automobile With Voice

(Android smartphone) Bluetooth work

Circuit and dealing

The circuit diagram of the receiver aspect of the mechanism is shown in Fig. 5.
The circuit diagram of the receiver aspect of the mechanism is shown in Fig

Major elements utilized in this project ar delineated  below.

Android smartphone with app

Android smartphone with app. golem speech-recognition app (voicecontrol.apk) used here was developed exploitation Massachusetts Institute of Technology App creator. once the app is running within the smartphone, user’s voice commands ar detected by the mike gift within the phone.

Commands ar processed, and speech-to-text conversion is finished inside the app exploitation Google’s speech-recognition technology. Text is then sent to the receiver aspect (that is, robotic car) via Bluetooth.

Arduino Uno R3. Arduino Uno is associate degree AVR ATmega328P microcontroller (MCU)-based development board with six analogue input pins and fourteen digital I/O pins. The MCU has 32kB ISP nonvolatile storage, 2kB RAM and 1kB EEPROM. The board provides the potential of serial communication via UART, SPI and I2C. The MCU will operate at a clock frequency of 16MHz. during this project, digital I/O pins two, 3, four and five of Arduino ar organized as output pins. Pins zero and one of Arduino ar used for serial communication with HC-05 Bluetooth module.

Text received via Bluetooth is forwarded to Arduino Uno board exploitation UART serial communication protocol. Arduino program voice_ctrl.ino checks the text received and, if it's an identical string, Arduino controls the movements of the mechanism consequently. Voice commands used for dominant the mechanism and their functions ar shown in Table I.
dominant the mechanism and their functions ar shown

HC-05 Bluetooth module. HC-05 module is associate degree easy-to-use Bluetooth port Protocol (SPP) module, designed for clear wireless serial association setup. port Bluetooth module contains a fully-qualified Bluetooth V2.0+EDR (enhanced information rate) 3Mbps modulation with complete two.4GHz radio transceiver and baseband.

Hardware options. These are:

  • Typical -80dBm sensitivity
  • Up to +4dBm RF transmit power
  • 3.3V to 5V I/O
  • Programmable input/output (PIO) management
  • UART interface with programmable baud
  • Integrated antenna
  • Edge connexion

Software options. These are:

  • Slave default information measure rate: 9600; information bits: 8; stop bit: 1; parity: no parity
  • Auto-connect to the last device on power as default
  • Permits pairing device to attach as default

Auto-pairing pin: 1234 as default
Pin description. HC-05 Bluetooth module has six pins, as careful below.
Enable. once alter is force low, the module is disabled. this implies the module won't activate and can fail to speak. once alter is left open or connected to three.3V, the module is enabled, that is, it'll stay on and communication will manifest itself.

Vcc. provide voltage three.3V to 5V.
Gnd. Ground pin.

Txd and Rxd. These pins act as UART interface for communication.

State. This pin acts because the standing indicator. once the module isn't connected to or paired with the other Bluetooth device, the signal goes low. At this low state, the aboard semiconductor diode flashes unendingly, that denotes that the module isn't paired with another device. once this module is connected to or paired with another Bluetooth device, the signal goes high. At this high state, the aboard semiconductor diode blinks with a continuing delay of, say, 2 seconds. this means that the module is paired.

L293D motor driver. this can be a twin H-bridge high-current motor driver IC. it's used here as a result of digital pins of Arduino cannot supply enough current to drive the motors of the robotic automobile. H-bridges are helpful in dominant the direction of rotation of a motor. alter pins one and nine of the IC, being active high, ar connected to 5V. Four output pins of L293D IC ar connected to motors money supply and M2 on the receiver aspect.

Signal logic levels at the various stages of the circuits for correct dominant of the robotic automobile ar given in Table II.
Signal logic levels at the various stages of the circuits for correct dominant of the robotic automobile ar given in Table II.

Arduino IDE one.6.5 is employed for programming Arduino during this project. Steps to program Arduino ar as follows:

  1. Select the correct COM port and board from Tools menu within the IDE.
  2. Upload ASCII text file voice_ctrl.ino to the board.

Construction and testing

An actual-size PCB layout of the receiver circuit is shown in Fig. vi and its elements layout in Fig. 7. A Micromax Q372 golem smartphone with golem Lollipop five.0 was wont to run Voicecontrol app. once prosperous installation of the app, activate the web association and Bluetooth of the smartphone.
An actual-size PCB layout of the receiver circuit is shown in

An actual-size PCB layout of the receiver circuit is shown in

Power on the receiver circuit and try Bluetooth module with the smartphone. Default master key is 1234. once prosperous pairing, open the put in app within the smartphone and press the pushbutton with Bluetooth text and brand on that. Now, the list of paired devices can seem. choose HC-05 from the list to attach the smartphone with HC-05 Bluetooth module on the receiver aspect. once prosperous association, ‘connected’ are displayed on the most screen of Voicecontrol app. Press the pushbutton with mike image and a prompt can seem soliciting for voice commands.

When the prompt seems, voice commands ar detected by the app, that converts them into text and sends it to the receiver aspect wirelessly via Bluetooth. On the receiving aspect, Arduino checks the text. If it's an identical string, it controls the movements of the mechanism consistent with the outline given in Table II.


Monday, August 05, 2019

Electrical generator or Generator

Complete Details of excitation current in AN Electrical generator or Generator

Excitation current is crucial for AN generator or generator. it's accountable to get and maintain a voltage in generator terminal that is that the should demand for continuous generation of electricity.

Here we tend to area unit talking concerning giant scale alternators of generators area unit utilized in power plants and alternative serious applications. In those system, refined automation system is used for provide and management of excitation current.
Complete Details of excitation current in AN Electrical generator or Generator

What is excitation current of AN generator or Generator

Already we all know that for generation of electricity, initially a voltage is to be generated within the mechanical device. With a voltage generated, electricity shall flow by finishing the circuit. Our following discussion are going to be on the premise that, mechanical device is mounted and rotor is rotating. this kind of arrangement is employed for many of the generator and generator. For generation of electrical voltage during a circuit, 3 things area unit required-

1. Magnetic flux: Magnetic circuit is placed within the rotor. needed magnetic flux is made within the rotor by supply DC (Direct Current) to the rotor circuit. This electrical energy (DC) is termed excitation current. that is needed to get magnetic flux within the rotor circuit.

2. Conductor: Conductor is placed within the mechanical device. it's placed as coil comprise of heap of conductor for current carrying capability concern.

3. Relative motion between the magnetic flux and conductor: Relative motion is availed through rotor in addition to a main mover which might be engine, rotary engine etc.
So we are able to say that the present provided to the rotor circuit to supply magnetic flux is termed the excitation current for AN generator. This overall element is termed the Exciter machine.

Should the excitation current be mounted or adjustable in Electrical generator or Generator:

An generator operates in variable load condition and things. and that we apprehend that in operation, the generator terminal voltage is to be keep constant at intervals the vary. It will be unsteady. the present could be variable, however terminal voltage to be stay same or constant at intervals a permissible vary.

The excitation current is that the current that generates the terminal voltage. Rating of excitation current controls the terminal voltage level. Thus, to stay the terminal voltage constant or mounted, the excitation current is to be variable and adjustable.

So, excitation current should be adjustable.
Source of excitation current in Electrical generator or Generator:

The excitation current is provided to the rotor through a tool referred to as Automatic transformer (AVR). The supply of the excitation current varies from manufacturer and from completely different style. In some cases, the excitation current would be provided from AN external battery or generator.

In some cases, an extra winding is placed within the main winding of mechanical device that generates and provides the present to the automated transformer (AVR).
The supply of excitation current isn't directly electrical energy (DC). it's essentially AC ( AC). The AC is then regenerate to electrical energy (DC) before fed in to the rotor circuit.

In some cases, extra arrangement is completed to cope up transient conditions. These area unit shunt boost reference to great amount of excitation current boosted.

How the excitation current is controlled in Electrical generator or Generator :

The excitation current is provided from the device referred to as AVR (Automatic Voltage regulator). It regulates the excitation current therefore controls the generator terminal voltage.

AVR (Automatic Voltage regulator) is fed with AC (AC).
The supply of AC varies from style to style and by completely different arrangement.
AVR (Automatic Voltage regulator) is refined device that provide excitation current by real time calculation. It takes information input from numerous supply like terminal voltage, load condition, load demand etc.
How excitation current is provided to the rotor circuit in Electrical generator or Generator :
Now we all know that, the excitation current is nothing however the electrical energy (DC) provided to the rotor circuit to get magnetic flux. And, it's required to be adjustable. So, excitation current from outside is to be provided to the rotating rotor. this can be done through the 2 methodology brush less excitation system and Static excitation system.

Types of excitation system in AN generator

The two most designed excitation systems are: Brushless excitation and static excitation.

As we tend to already apprehend, rotor is rotating and mechanical device is mounted. The force field circuit is placed on the rotor that is moving. electrical energy ( DC) is to be provided to the present rotor circuit for making force field. Here lies the most challenge. the way to provide this electrical energy. There area unit 2 forms of arrangement offered.

1: Brush less Excitation system in generator or Generator

In this case, induction methodology is employed. initially AC excitation current is regenerate to DC by rectifier set. Then this electrical energy (DC) is fed in to a magnetic circuit that manufacture force field. The rotor contains a 3 section winding that interacts with the force field. therefore induction current is generated within the rotor. Then this current is regenerate to electrical energy (DC) by rectifier arrangement. Afterwards, this electrical energy is fed in to the rotor magnetic circuit. during this methodology there's no physical contact between the external excitation current provide and also the rotating rotor.

When a brushless excitation system is employed, a rotating machine is coupled to the generator non driven shaft, supply the excitation current. This machine, referred to as exciter machine, has

in the rotor a 3-phase winding and
in the mechanical device AN excitation (field) winding connected to electrical energy.
Therefore, AN AC is induced  into the rotor winding.

The induced  AC at the terminals of the rotating 3-phase winding should be corrected. This happens with a 3-phase diode bridge mounted on the shaft and therefore rotating. The ensuing electrical energy is fed on to the generator’s rotor winding.
The electrical energy for the mechanical device winding of the exciter is provided via

the generator terminals,
through AN excitation electrical device and
a rectifier set.

Advantage of brush less excitation system in generator or Generator

A brush less excitation system contains a relative long response characteristic (time constant), compared to the static excitation system.

2: Static excitation system in generator or Generator

In this case electrical energy is fed in to the rotor magnetic circuit. there's physical contact between the external circuit to the rotating rotor. The electrical energy is transferred through connection arrangement. This electrical energy ( DC) is typically remodeled from AC ( AC). it's done beforehand within the electrical panel or alternative place. however electrical energy is merely provided to the Rotor circuit.

The excitation current should be transferred from the excitation system through brushes onto the rotor winding. The brushes transfer the electrical energy via 2 isolated slip rings to the rotor winding. the comb gear is mounted at the non-driven finish of the generator; the parts area unit lined with AN air cooled casing.

Advantage of Static excitation system in generator or Generator :

A static excitation system contains a fast latency just in case of a needed sudden  amendment of the exciter current, that compared to the comb less excitation system.


Saturday, August 03, 2019



Since I actually have announce a commentary regarding wireless charging i'm curious about posting a commentary that produces the readers to know wireless transfer of chargers during a real time jazz yourself expertise.
Click here to look at the article regarding wireless charging-theory primarily based rationalization.
 this is often be} an easy circuit that  can power up a light-emitting diode with none wires, at a distance of just about three centimeters. This circuit acts as each, maximize Voltage convertor and conjointly wireless electricity transmitter and receiver.This project is straightforward to find out and to implement it, and it conjointly a fascinating to point out to your family that i created a wireless power transfer circuit, etc.. Follow the steps fastidiously it i created it terribly straightforward to know.
 CLICK HERE to grasp THE operating OF THIS CIRCUIT


  1. NPN TRANSISTOR-(2N3904)
  3. LED
  4. 1.5 OR 9V D.C BATTERY


  4. CANDLE OR light-weight
2N3904-NPN TRANSISTOR- because the name says it's a semiconductor unit of npn sort during which the bottom is formed of p-type material whereas the electrode and collector square measure semiconductor device. we are able to conjointly use PNP sort semiconductor unit the sole modification is we wish to alter the direction of the circuit. B.C. 547 and BC337 is additionally counseled to use.
RESISTOR- because the name says a tool that resists this flow or the flow of electrons during a conductor is termed electrical device. the worth of electrical device we would have liked during this project is 1KΩ.
LED- light-weight emitting diode emits light-weight once current flows through it. 2 led's square measure counseled to hold simply just in case one fails.
COPPER WIRE- A copper wire is employed to create coil specified magnetic force induction is created to transfer the flux within the primary winding. we are able to notice these style of wires in your home wiring systems or during a broken tiny electrical device or a motor.  A wire of medium thickness not larger than one.5mm radius is most popular.
BATTERY:  Battery acts as an influence supply to glow the light-emitting diode.  The additional the voltage of the supply the additional brighter the light-emitting diode is and may transmit upto a pair of inches in air. conjointly don't use terribly high voltage as a result of the semiconductor unit wont take that abundant voltage,which is incredibly sensitve.



  1. ke a spherical object specified we are able to create a magnetic coil of thirty turns and check whether or not the receiver secret is solely the key for time.
  2. Tie knots on every finish of the coil wire that ensures coil wont get unoiling and unresting itself.
  3. Make the transmission cable by at the start wounding fifteen turns then creating a faucet continued  by another fifteen turns of the coils.
  4. Burn on the stuff forming of Associate in Nursing generator. 
  5. 2 ends - coil A
  6. 3 ends- coil B.
  7. Connect the bottom of the electrical device to anybody finish of the coil and are available here.
  8. connect the collector to a different free finish of the prevailing coil.
  9. If you wish solder a bit little bit of wire from electrode.
  10. COIL-A - light-emitting diode
  13. THE supply IS MEASURED IN electrode. 

 1st analyze the given schematic circuit diagram. The diagram consists of 2 separate circuit which has the transmitter circuit and therefore the receiver circuit. within the transmitter aspect the voltage and current source- the battery's positive aspect is connected to the one finish of the coil and therefore the different is connected to the electrode aspect of the semiconductor unit. the bottom region of the semiconductor unit is amalgamate with the electrical device of vary one kg ohm. a middle broached construction is employed in coil construction.
 the primary difficult procedure is that the creating of 2 coils i.e for the transmittal half and therefore the receiving half.  For the receiving half it's simple, take a spherical surfaced object and circle thirty turns of copper wire then twist the last spin the coil to make sure it will not got loosen. The receiver's coil is incredibly straightforward that has 2 copper shops, during which one is that the transmitter and therefore the different is that the receiver.  For the transmitter aspect you're about to create a middle broached coil wounding wherever you ought to take identical volume that the receiving aspect is formed. initially wound fifteen turns and faucet with a coil loop hanging different programs for diagnozing error  and wound the remainder of the fifty turns.
 creating the transmitter: Take the semiconductor unit, and place it in order that the flat aspect is facing up and therefore the leads face towards you. The lead on the left is that the electrode, the lead within the middle is Base, and therefore the lead in right is that the Collector. Take the electrical device and connect one amongst its ends to the bottom of the semiconductor unit. Take the opposite finish of the electrical device and connect it one amongst the ends (not the tap) from Coil B. Take the opposite finish from Coil B and connect it to the Collector of the semiconductor unit. If you wish you'll connect atiny low piece of wire to the electrode of the semiconductor unit (It would work as Associate in Nursing extension of the electrode.)  CLICK HERE to grasp THE operating OF THIS CIRCUIT.


 thus this square measure the variations of issues you will face, and the way to mend them:
 1) Problem: The semiconductor unit becomes too hot!
Solution: Did you utilize a electrical device of the correct value? I did not use a electrical device the primary time, and it began to smoke. If it doesn't solve the matter, then attempt employing a heat shrink or employing a semiconductor unit with higher amp rating.

2)Problem: {the light-weight|the sunshine} doesn't light up!!
Solution: the matter is simply too broad. There may be several reasons behind the matter. however 1st check the connections. I accidentally swapped the bottom and Collector connections, that caused an enormous drawback on behalf of me. thus check you association 1st. If you've got a multimeter check to check if you've got continuity between your connections. conjointly make certain that the coils square measure of identical diameter. even be careful there no shorting within the circuit.
I don't realize any longer issues. however if you're facing another issues, let ME know! i will be able to attempt to facilitate the maximum amount as I will. conjointly i'm a 2d year eee student, thus my knowledge domain is extraordinarily restricted, so if I create any mistakes, facilitate ME notice it out. Suggestions for enhancements square measure quite welcome.  THen fiz the light-emitting diode we have a tendency to square measure about to arth is destiny.






 Yesterday I actually have denote regarding the creating of straightforward wireless energy transfer circuit, click here to examine the DIY wireless power transfer circuit project . nowadays i'm about to make a case for regarding the working rule of the circuit.
 I actually have denote regarding the complete theoretical clarification regarding the complete thought behind the wireless transfer of charges, click here to examine regarding the complete theoretical thought of the wireless energy transfer
The below article describes the circuit that I actually have denote yesterday



At first, the electronic transistor is in off condition and therefore the current from the battery directly flows through the fifteen turns of the winding coil and thru the 1kilo ohms electrical device,  And ending within the base of the electronic transistor.  Since it's in base bias condition currently the present flows through the collector finish and thru the remainder of fifteen turns of the transmission coil that creates a magnetic flux through the coil.
This magnetic flux created cuts the coil at fifteen turns winding to the bottom and produces the voltage additionally to the voltage made by the battery. that will increase the present into the bottom region of the npn electronic transistor till it becomes off. since the collector aspect winding has most flux the bottom winding flux doesnt be thought of and it's no have an effect on. at that time once more the present within the base region becomes tiny and electronic transistor activates once more. the present through the collector winding reduces and therefore the magnetic flux starts to collapse and manufacture a voltage (in each windings) of opposite polarity.

 within the base, it starts to show the electronic transistor off utterly and within the collector
winding the magnetic flux is sort of sizable as a result of it's collapsing terribly
quickly and it radiates this magnetic energy to the air. after you place another coil close to the primary coil, the magnetic energy passes  through the centre of the coil and produces a voltage within the turns.

      This potential unitage will be the maximum amount united volt per flip however once the voltage reaches
the threshold voltage of the semiconductor diode, the energy (consisting of voltage and
current) is reborn to a CURRENT and therefore the semiconductor diode illuminates. you'll be able to place two LEDs
on the receiving coil to examine the voltage it produces.

      The circuit are going to be way more economical if the 1k electrical device is placed before the
base winding and a 1n to 22n connected between the 1k and negative of the
battery. do this and therefore the brightness can increase and therefore the current from the battery can decrease!!


       The on top of circuit we tend to created is associate circuit that has periodic  behavior or just it's associate generator circuit.  As within the joule malefactor circuit this circuit takes electricity from the battery supply we've got given that is whether or not it's one.5 or nine V battery although the semiconductor diode takes regarding three potential unit to remove darkness from the joule malefactor circuit aids one.5 potential unit battery to remove darkness from the semiconductor diode we are able to additionally say the joule malefactor circuit because the boost up convertor associated additionally an generator. i'll post regarding the joule malefactor result in tommorow's diary post. 
        Lets use electrical device as an example to elucidate this wireless transfer circuit. a traditional electrical device contains a core with wires on either aspect. Lets suppose the wire on both sides of the electrical device is equal in quantity. once electricity is more experienced one coil, the coil becomes associate magnet because of the faraday's law of magnetic attraction induction. If the electricity is periodical voltage, meaning the voltage would keep rising and dropping. thus once associate periodical electricity is more experienced the coil, the wire gains properties of magnet then once more loses electromagnetism once the voltage drops.
         A coil of wire changing into magnet then losing its magnetic attraction characteristics extremely quick is simply sort of a magnet moving extremely quick in and out of the second coil. And after you pass a magnet extremely quick through coil of wires, you manufacture electricity, therefore the periodical voltage in one coil on the electrical device, induces electricity within the alternative coil of wire, and therefore wirelessly electricity is transferred from one coil to the opposite. In our circuit, the air is that the core, and there's periodical voltage surfing the primary coil, thus you induce A.C electricity within the second coil and light-weight up the LED!

 thus for our circuit we tend to simply used a L.E.D to point out the output. however we tend to might do over that! The receiver circuit receives A.C electricity, thus we tend to might use giant boost up convertor to use the output from the receiver coil to remove darkness from pollutant bulbs! additionally it's nice for a few cool magic tricks, fun gifts,and science comes for sophistication. additionally you'll amendment the diameter of the coils and variety of activates the coils to maximise the results. additionally you'll attempt creating flannel cake coils, and see however it goes! the probabilities square measure endless!!

 i'll presently POST A VIDEO regarding THE creating OF THE CIRCUIT DONT WORRY.



Friday, August 02, 2019

How to opt for surge constraint to shield electrical instrumentation from wave.

Surge constraint may be a very important protecting precaution in grid. Its sole purpose is to shield the fragile electrical instrumentation like generator, electrical device and equipments in station. an immediate fault is probably going to happen seldom however any indirect fault in out aspect cable that produce wave can cause severe hurt to the indoor or out door equipments.

So special care ought to be absorb to thought to decide on a surge constraint as per protection level and cost accounting. on balance surge constraint protects the equipments that square measure thought-about to be the guts of electrical system.

Things to contemplate to decide on surge constraint01. MCOV price in kV

MCOV – most Continuous operational Voltage (MCOV) provided by the manufacturer. The surge arrester’s MCOV should be bigger than (or equal to) the service voltage of the network in thought.
The choice of a surge constraint ought to take into thought the voltage between the conductors and also the earth (phase to neutral voltage) whereas normally the service voltage of the network is given in part to part voltage.

02. Voltage & Current – equipped level of protection

The effectiveness of surge constraint protection is measured by the residual voltage, at the surge constraint terminals, whereas a given current is flowing through it. Typically, the amount of protection is outlined by a combine of values (for example eighty kV/10 kA).This voltage price should be in vary of stand up to price of the instrumentation.

The margin should be a minimum of 2 hundredth and will take the surge arrester’s installation mode and cabling into consideration. Ineffective cabling will result in voltages within the equipment’s terminals that square measure significantly more than the surge arrester’s residual voltage, thanks to voltage drops in stray impedencies.

03. Thermal stand up to

It aims at guaranteeing the non-destruction of the surge constraint within the case of an extended impulse (greater than the normalised check impulse). This performance is given by a current impulse stand up to.



Thursday, August 01, 2019

Google Data Center Electrical Engineer

Google Data Center Electrical Engineer
Google Data Center Electrical Engineer

Minimum Qualifications:

Bachelor's Degree in Electrical Engineering or similar practical experience.
6 years experience in bid build environment for mission critical features.
Ability to travel locally and internationally 30% of the time as needed.
Preferred Qualifications:

Master's Degree in Electrical Engineering.
Professional Engineering License.
10 years of experience in bidding, designing, operating and commissioning electrical distribution systems from high voltage (HV) transformers to branch circuits.
Experience with power system analysis and engineering software packages.
Demonstration of mechanical and control systems.
About the job
Our thirst for technology is part of everything we do. The data center engineering team takes into account the physical design of our data centers in the future. Our laboratory mirrors the research and development department - reproduces, tests and tests advanced strategies. With a team of great minds, you will look at complex issues such as how to use power or operate advanced, environmentally friendly features. You're a dreamer who fixes izes for efficiency and never stops looking for improvements - even small changes that have a big impact. You generate ideas, communicate recommendations to senior-level executives, and drive implementation with feature technology.

As a Data Center Electrical Engineer, you have demonstrated experience in the design, construction, operation and maintenance of equipment in the area of ​​critical and mission critical features. You have knowledge of critical mission critical infrastructure infrastructure and will be involved in the development of complex electrical infrastructure - from site assessments and concept design, to construction projects and major upgrades and upgrades to existing infrastructure. You will also provide and prepare documentation, including work statement (SOW), total cost of ownership (TCO) analysis, concept design, drawing markups, budgets, schedules, factory testing and acceptance documents, final start / commissioning reports and review and acceptance. Is. Built and submitted.

Google is and will always be an engineering company. We hire people with a broad set of technical skills who are ready to tackle some of the biggest technology challenges and impact millions, if not billions, of users. At Google, engineers not only revolutionize search, they regularly work with developers around the world on a wide range of scalability and storage solutions, large-scale applications and completely new platforms. From Google AIDS to Chrome, to Android to YouTube, to Social to Local, Google engineers are changing the world around one by one.

Collaborate with the core team to understand, develop and update data center electrical designs, start new data center project build-outs and issue-building documents (IFCs) for key infrastructure in all levels of testing. And the operation continued.
Conduct all power system issues on site during concept design, detailed design, procurement, bidding, production, delivery and installation. Identify and resolve issues raised by cross-functional teams and various external partners.
Create scope of work for large infrastructure facilities parts based on project requirements. Work with internal teams to update and document the configuration as it develops.
Interface closely with Global The Modities team, manufacturers and various global and local engineering teams to deliver the required electrical solutions for each project.
Update and maintain interior design specifications, drawings and standards according to the latest settings and all 'lessons learned' in relation to all devices.

At Google, we don't just accept the difference - we celebrate it, we support it, and we enrich it for the benefit of our employees, our products, and our community. Google is proud to have an equal opportunity workplace and is a positive action employer. We are committed to equal employment opportunity regardless of race, color, race, religion, gender, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity or pe te status. We also consider eligible applicants, regardless of criminal history, consistent with legal requirements. See also Google's EEO policy and EEO is the law. If you have a disability or special need that requires accommodation, please let us know by filling out this form.

To all recruitment agencies: Google does not accept agency startups. Please do not resume our job nicknames, Google employees, or any other organization location. Google is not responsible for any fees associated with unwanted resumes.

Mora information click 


Wednesday, July 31, 2019

What Is Electric Insect And Paste Rejection

What Is Electric Insect And Paste Rejection?
Electric pest and pest rejection is a technological innovation in the pest control industry. It is designed to keep insects from slipping into your home and offices.
What Is Electric Insect And Paste Rejection?
It uses state-of-the-art dual-advanced technologies, electromagnetism and ultrasound waves.

Electromagnetism technology Sp G is used against spiders, ants, cockroaches, rats and other squirrel and ultrasound technology, it is used against mosquitoes and flies.

It is:
No chemical products,

- No maintenance costs and

- Unlimited duration.

Easy to use:
All you have to do is paste paste into the electrical outlet of your home and it will remove the palisades into the redshift's action radius.

How to use
Exposure to any pesticides used in the control of regular life can have consequences in various health and environmental influences.
Pesticides, such as surface spraying and dirt treatment, may prolong the environment in days, weeks, or even after application.
Causes of inflammation in the eyes, nose and throat
Health symptoms may include - headaches, dizziness, nausea, omnivores, abdominal cramps, diarrhea, blurred vision, excessive watering of the eyes, sweating and excess saliva.
Prolonged exposure to some pesticides can damage the liver, kidneys, endocrine and nervous systems.
Contaminated air, soil or dust that floats in the environment for days
Pesticides can penetrate your body through food or drink, skin contact, disinfectant clothing, disinfectant steam, spray or dust.
If a bird or pet eats a spider / rat killed by an insecticide it can poison it.
Risk factors for pesticide poisoning for unborn children and young children, pregnant and nursing women, older people.

Product Specifications:
What Is Electric Insect And Paste Rejection?
No harmful chemicals or toxins.
100% new and high quality.
Install 80-120 centimeters away from the floor.
Ical from the floor should be wet and plugged into a power socket.
The machine can be plugged directly into the AC220V (or 110V) power socket.
Caution: moisture-proof, waterproof.
Applicable to repel cockroaches, mosquitoes, insects, insects, mice, lizards, etc.
22-65KHz repelling.
The ultrasonic frequency goes off to allow for a pet friendly environment.