Engineering Projects

The main objective of this project is to record the attendance of students using RFID tags. Each student is provided with his/her authorized tag to swipe over the reader to record their attendance.   In classrooms, time is wasted in roll calls as it is done manually. In this proposed system, authorized student is given an RFID tag. This tag contains an integrated in built circuit that is used for storing, processing information through modulating and demodulating of the radio frequency signal that is being transmitted. Thus, the data stored in this card is referred as the identification/attendance of the person. Once the student places the card in front of the RFID card reader, it reads the data and verifies it with the data stored in the microcontroller from AVR family. If the data matches, then it displays a message on the LCD confirming the entry of that student else displays a message denying the attendance. The status of a student’s attendance can be retrieved from this sys

We usually come across drink and driving cases where drunk drivers crash their cars under the influence of alcohol causing damage to property and life. So here we propose an innovative system to eliminate such cases. Our proposed system would be constantly monitoring the driver breath by placing it on the driver wheel or somewhere the drivers breath can be constantly monitored by it. So if a driver is drunk and tries to drive the system detects alcohol presence in his/her breathe and locks the engine so that the vehicle fails to start.         In another case if the driver is not drunk while he starts the vehicle and engine is started but he/she drinks while driving the sensor still detects alcohol in his breath and stops the engine so that the car would not accelerate any further and driver can steer it to roadside. In this system we use an AVR family micro controller interfaced with an alcohol sensor along with an LCD screen and a dc motor to demonstrate the concept. So here the

The project is  designed  to  measures different solar cell parameters like light intensity, voltage, current and temperature by using multiple sensor data acquisition. The project uses a solar panel to monitor sunlight and Arduino board which has ATmega family microcontroller attached to it. The project requires an LDR sensor for measuring light intensity, a voltage divider to measure voltage and a temperature sensor to measure the temperature. These measurements are then displayed by the microcontroller to a LCD screen. Thus this system allows user to effectively monitor solar parameters using this system.

Here we propose an advanced footstep power generator system that uses peizo sensors to generate power from human footsteps.  The system allows for a platform for placing footsteps. The peizo sensors are mounted below the platform to generate voltage from footsteps.  The sensors are placed in such an arrangement so as to generate maximum output voltage. This is then provided to our monitoring circuitry. The circuit is a micro controller  based monitoring circuit that allows user to monitor the voltage and charges a connected battery by it. It also displays the charge generated and displays on an LCD display. Also it consists of a USB mobile phone charging point where user may connect cables to charge mobile phone from the battery charge. Thus we charge a battery using power from user footsteps, display it on LCD using micro controller circuit and allow for mobile charging through the setup.

This project attempts a new speed control technique for the single-phase a.c. induction motor. It presents a design of a low-cost; high-efficiency drive capable of supplying a single-phase a.c. induction motor with a PWM modulated sinusoidal voltage. The circuit operation is controlled by an AVR micro controller.

Electric cars have already hit the roads and have marked the beginning of electric vehicle era.  Here we design an improved electric vehicle that is made to tackle urban traffic problems and also provide accurate speed control without gearing system. Also it is a zero emission, earth friendly vehicle. Our proposed vehicle has been designed on an android interface and demonstrates accurate speed controlling as well as easy turning functionality for electrical vehicles using four motor drive system. Here we use an android device interface to control the vehicle. The device allows the user to send commands through an android device via Bluetooth connection. The circuit system consists of a Bluetooth receiver connected to ARM cortex. The ARM is also interfaced to four motors, and uses a battery to supply 12V power supply. On receiving the commands the ARM processor processes user sent instructions. If turning instructions are found the system turns vehicle with synchronized speed at reg

The main purpose of this Digital Temperature Controller is to control the temperature of any device like AC or any other electronic devices whose temperature keeps fluctuating and thus requires a constant watch on the device. The use of this system eliminates constant watching on the device by self controlling the temperature of the system. Our proposed project consists of digital temperature sensors for more accurate temperature control in various industries. Our system overcomes the disadvantages of thermostat/analog systems in terms of accuracy. This system can be used in any firm or organization where it is very important to maintain precise temperatures. LCD display is used to display the temperature and when the temperature exceeds the set limit, the lamp is switched off in order to control the temperature. The heater is demonstrated with the help of a lamp. After the heater is switched off, the AC is switched ON. Here AC is demonstrated with the help of small fan. After the

When an individual riding his/her bike, meets with an accident, there is a chance that the individual may suffer from a serious injury or expire instantaneously and there is no one around to help him. Well this system is a solution to the problem. The system acts as an accident identification system that gathers and sends this vehicle information that met with an accident, and conveys it to the nearest control room. For this the user vehicle is fixed with an RF transmitter circuit that has a vibration sensor along with microcontroller, RF encoder and also fitted with an RF transmitter. Each and every control room must have an RF receiver fitted to receive the transmission. Whenever a user vehicle meets with any accident, the vibration sensor detects and gives its output. This output is then detected by the microcontroller. Now the microcontroller sends this change detection signal to an RF transmitter. The RF transmitter now intern begins transmitting this accident data. The near

Hologram makers, render 3D projections whether it’s inside a glass tube or suspended in thin air. 3D multi dimensional images enable users to interact with content in a totally unique way from a 360-degree seeing point. The way to the operation of holographic projectors is the 3D image. A holographic projector utilizes part illuminations reflected together from multiple viewing angles of the subject in a combined form to reproduce a picture of the subject in a 3D state. Our system produces holographic projections created through anticipated picture by refraction through the interference design, losing barely any light, and working with substantially more productivity. Our system uses a raspberry pi controller based system to achieve such holographic projections. We then use a display to provide part live videos to the projector setup in order to get the desired 3d hologram. Our frame is constructed to project image in 3d state using a clear pyramid frame in an accurately designed 3d

ABSTRACT This project monitors the quality of water. Wireless Sensor integrated system for water ecosystem monitoring has been developed. pH level of normal water should be 7. Total dissolved solid value (TDS) of normal water should be 234. Temperature of normal value should be 27 degree Celsius. This project uses pH sensor, TDS sensor and temperature sensor to monitor the quality of water. Data received from sensor is given to ATmega328P micro controller. This micro controller sends this data to 16 by 2 LCD display. Also it sends this data to user over internet. By which user can monitor the quality of water over remote location through internet. Block Diagram Top View Cost of Project - Rs. 15000/- Cost with Documentation - Rs. 18000/-

ABSTRACT This project monitors the quality of water. Wireless Sensor integrated system for water ecosystem monitoring has been developed. pH level of normal water should be 7. Total dissolved solid value (TDS) of normal water should be 234. Temperature of normal value should be 27 degree Celsius. This project uses pH sensor, TDS sensor and temperature sensor to monitor the quality of water. Data received from sensor is given to ATmega328P micro controller. This micro controller sends this data to 16 by 2 LCD display. Also it sends this data to user over internet. By which user can monitor the quality of water over remote location through internet. Block Diagram Cost of Project - Rs. 15000/- Cost with Documentation - Rs. 18000/-

ABSTRACT Wired data transmission can be possible using different peripherals  like- USB cables, pen drives, etc. This project performs wireless data transmission which reduces hardware requirement and complexity of circuit. Main objective of this project is to construct a fingerprint authenticated wireless pen drive. In which only authorized person can be able to access the stored data in the pen drive. To use this pen drive, a user simply authenticates by placing his/her finger on the fingerprint sensor, which causes  fingerprint  access  and  fingerprint  matching.  LCD module is  interface  with  ATmega328P micro controller  to display  the data  present  in  the  device.  Arduino  provides  an  interface  between  the  input devices  and  Wi-Fi  module.  On  the  receiver  side,  the  PC/laptop  connected  to  the  Wi-Fi module and thus data received and displayed.  Block Diagram Cost of Project - Rs. 12000/- Cost with Documentation - Rs. 15000/-

INTRODUCTION Due to rapid population growth, disorganization of city governments, a lack of public awareness and limited funding for programs, garbage management is becoming a global problem. Due to the lack of care and attention by the authorities the garbage bins are mostly seem to be overflowing. It has to be taken into care by corresponding authorities and should think what method can be followed to overcome this. In this project  smart garbage management system is implemented using sensors, micro controllers and ESP8266 Wi Fi Controller assures the cleaning of dustbins soon when the garbage level reaches its maximum. If the dustbin is not cleaned in specific time, then the record is sent to the higher authority who can take appropriate action against the concerned contractor. This system also helps to monitor the fake reports and hence can reduce the corruption in the overall management system. This reduces the total number of trips of garbage collection vehicle and hence r

ABSTRACT  In any domain efficient  use  of  the  wireless  technology  leads  to  the  better  implementation  of  security  and  data management. In this project wireless  sensor  network (WSN)  refers  to  a  group  of spatially  dispersed  and  dedicated  sensors use for monitoring  and  recording  the  physical  conditions  of the  environment  and  organizing  the collected  data  at a central location through wireless sensor node. WSNs measure  environmental  conditions  like  temperature, sound,  pollution  levels,  humidity,  wind,  and  so  on. Temperature, humidity and soil moisture are the most important factors for  productivity,  growth,  and  quality  of  plants  in  agriculture.  Sensors  are  deployed  to  gather  the temperature  and  humidity  values.  The  sensor  node  has  to  transmit  the  gathered  information  through  the wireless communication network to the base station. At the base station raspberry pi zero w development board is  used  for  controllin

In order to improving quality and production efficiency, reduce labor intensity, it  is  necessary  to  research  nondestructive  automatic  detection  technology.  A  robot  is  an automatically  guided  machine,  able  to  do  tasks  on  its  own.  This  project,  which  is  our endeavor to design a Fire Fighting Robot, comprises of a machine which not only has the basic features of a robot, but also has the ability to detect fire and extinguish it. This robot processes  information  from  its  various  sensors  and  key hardware  elements  through micro controller.                  Once the flame is detected, the robot sounds the alarm with the help of buzzer provided to  it,  the  robot  actuates  an  electronic  valve  releasing  sprinkles  of  water  on  the  flame Software  development is  highly  important  in  this  project  classification  system  and  for finding fire detection . It mainly contains four parts: the system overview, fire detecting and grading, experiments

ABSTRACT The underground cable system is a common practice followed in many urban areas. While a fault occurs for some reason, at that time the repairing process related to that particular cable is difficult due to not knowing the exact location of the cable fault. The objective of this project is to determine the distance of underground cable fault from base station in kilometers. When a low DC voltage is applied at the feeder end through a series resistor (Cable lines), then current would vary depending upon the location of fault in the cable. In case there is a short circuit (Line to Ground), the voltage across series resistors changes accordingly, which is then fed to an ADC to develop precise digital data which the programmed micro controller of AVR family would display in kilometers. The project is assembled with a set of resistors representing cable length in KM’s and fault creation is made by a set of switches at every known KM to cross check the accuracy of the same.

Introduction     Now a day’s two wheeler security improvement is essential due to increased number of two wheeler theft cases. Generally used key locks available in the bikes are well known to the thieves and thus it can be easily unlocked by the professional thieves. By using master key it becomes very easy to unlock the lock of the bikes by the thieves. This creates new demands and provides an additional security level. The different and modern lock must be unique in itself i.e. it must be only unlocked by specific way. Increasing demands on performance, security, quality and cost are the main challenges for today's automotive industry. Coming to the security aspect, let us throw some light upon the statistics of automotive theft.     In this project used input side two main input fingerprint and RFID module. This fingerprint and RFID module   output signals are gives to Atmega16 microcontroller.Atmega16 microcontroller are both input module signal can be check in

ABSTRACT Tachometer is device used to count the revolutions per minute of a rotating shaft. Generally tachometer makes direct contact with the rotating shaft. It will reduce the velocity of the shaft, giving faulty readings. Hence it is needed to measure the speed of rotating shaft without direct contact. This project describes a contact -less tachometer using AVR microcontroller ATmega328P and a hall affect sensor. This device can very accurately measure the rotational speed of a shaft without even touching it. This device is built on an ATmega328P microcontroller, an alpha-numeric LCD module and a Hall Effect sensor to detect the rotation of the shaft whose speed is being measured. In this project Hall Effect sensor acts as a digital counting device. It will detect any magnetic element passing in front of it and thus, will give an output pulse for each and every rotation of the shaft. These pulses are fed to microcontroller. Microcontroller counts the pulses coming from Ha

ABSTRACT Auto supply switching is basically selection of supply from multiple available power sources automatically by using microcontroller concept that is to check the availability of the source and switching to that available source to ensure uninterrupted power supply to load. In case of the electrical appliance control using automation causes more safety. Auto supply switching is a prototype for the same which is auto change to other source when main supply fails without human interaction in this system we are designing an embedded circuit to control and ensure auto supply switching. In case  all 4 phases are available , then the switching will be in the default phase. Four relays are there to control the switching. As it is not feasible to provide all 4 different sources of supply, one source with alternate switches are provided to get the same function. In this project 4 switches acts as 4 different source of supply. When any switch is pressed it shows the absence of th

ABSTRACT The  IoT  allows  objects  to  be  sensed  or  controlled  remotely  across existing  network  infrastructure,  creating  opportunities  for  more  direct  integration  of  the  physical  world  into  computer based systems and resulting in improved efficiency, accuracy and economic benefit in addition to reduced human intervention. This project controls the DC motor speed and direction using internet of things. Internet is the most widely used high speed andeasily accessible communication medium in the modern day world. The proposed system is simple and highly effective in terms of cost and efficiency. In this system, the direction and the speed of the DC motor can be controlled by internet over a remote location. It uses Wi Fi controller ESP 8266 to connect the project with internet. At the same time speed of D.C. motor is measured by infrared sensors placed near shaft of motor. The speed measured by infrared sensor and PIC microcontroller will be displayed on LCD disp

ABSTRACT Phase absence is a very common and severe problem in any industry, home or office. Many times one or two phases may not be live in three phase supply. Because of this, many times, some electrical appliances will be on in one room and OFF in another room. This creates a big disturbance to our routine work. This project is designed to check the availability of any live phase, and the load will be connected to the particular live phase only. Even a single phase is available, and then also, the load will be in ON condition. This project is designed with ATMega328. This controller continuously checks for live condition of all phases connected to it, and the controller connects the load to the active phase using a Relay. This relay is driven with a transistor. If two or three phases are live, the load will be connected to Phase 1 only. An LCD is provided to display the status of the phase condition. Contrast control preset is given for LCD contrast control. This project use

ABSTRACT As the power grid failure problems continue to persist in the country, need arises to make it more efficient and effective. This is a demonstration devised to provide such kind of a system that could detect the failure in the synchronous working of the power grid in case any external supply source that is supplying to the grid is encountering any kind of abnormalities may be in current levels, voltage levels, temperature, and oil level. There are various generation units that usually supply power to the grids such as thermal plants, solar plants, hydro-electric plants etc. All the generation units that connect to the grid have to obey the rules or standards laid down for the operation of a grid.Automation in monitoring is very important part in industrial plants. This system can used to automate the electrical system where system is sensitive to voltage and change in frequency. It also serves for the safety in heavy industrial duty. Automation of cut off increases the reli

ABSTRACT Most   electric   power   companies   employs   power   meter reader   to   collect   data   on   the customer’s energy consumption. Usually, this task is carried out manually, which can lead to high cost and errors, causing financial losses. This project has taken some approaches to minimize these problems. As in everywhere automation is required to reduce the work so we decided to implement to automatic meter reading using power line communication (PLC). Automatic meter reading (AMR) is the modern Power measuring device. It has advantages in safety, real time measuring and time saving as well as it has a better user interface and digital data analysis. Data is   send   over   existing   power   line   using   X10   protocol   that   reduces   the   complexity   and   cost   of system. In the latest generation of home automation systems, appliances can exchange information by transmitting data over the domestic mains wiring.   As a result there is no need to install ex