Wednesday, 2 December 2015

Machine Overheat Detection With Alert

This proposed system is used to detect temperature of devices that are overheated. This project is very beneficial especially in places like factories or industries consisting of big machines where it is very necessary to take some action in case the machine is overheated. The system uses a digital temperature sensor in order to detect temperature and pass on the data to the microcontroller. The 8051 microcontroller processes data and sends the temperature to be displayed on LCD screen. The display consists of 7 segment display unit to display up to 3 numbers. It consists of 4 push buttons for setting the high and low temperatures. Pressing set button allows user to increment and decrement the temperature of the system. The system uses 12V transformer to supply power to the system. We can set a limit to the temperature and in case if the system exceeds the temperature limit, an alarm rings to indicate that the system has exceeded the set temperature.

Tuesday, 1 December 2015

Fully Automated Solar Grass Cutter

The fully automated solar grass cutter is a fully automated grass cutting robotic vehicle powered by solar energy that also avoids obstacles and is capable of fully automated grass cutting without the need of any human interaction. The system uses 6V batteries to power the vehicle movement motors as well as the grass cutter motor. We also use a solar panel to charge the battery so that there is no need of charging it externally. The grass cutter and vehicle motors are interfaced to an 8051 family microcontroller that controls the working of all the motors. It is also interfaced to an ultrasonic sensor for object detection. The microcontroller moves the vehicle motors in forward direction in case no obstacle is detected. On obstacle detection the ultrasonic sensor monitors it and the microcontroller thus stops the grass cuter motor to avoid any damage to the object/human/animal whatever it is. Microcontroller then turns the robotic as long as it gets clear of the object and then moves the grass cutter in forward direction again

Monday, 30 November 2015

Hovercraft Controlled By Android

A hovercraft is a non wheeled vehicle that can hover over land as well as water easily using high powered fans and aerodynamic design. We here propose an advanced hovercraft that uses high rpm motors interfaced with an avr family microntroller to achieve desired functionality. The motor below hovercraft rotates at a very high RPM that allows it to generate a force enough to make it hover on the surface thus reducing the friction below it to minimum. Then we use the motor propeller mounted behind it to push the hovercraft in forward direction. Now we also need to use a servo motor attached to the hovercraft rudder that helps the hovercraft to move in desired directions by bending the air at accurate angles. The system works collectively to hover while continuously managing servo as well as propeller motor to drive the hovercraft as desired. Now to control the hovercraft we here use an android application. The android application sends movement commands to the hovercraft circuit. The circuit consists of an Bluetooth receiver to receive and process these commands. The commands received by receiver are now processed by the microcontroller and it then operates all three motors accordingly as desired by the user

Sunday, 29 November 2015

Smart Wireless Battery Charging With Charge Monitor Project

The project is a device to transfer power wirelessly instead of using conventional copper cables and current carrying wires and also measure battery charge. It also charges the battery using wireless power transfer concept till it reaches 100% capacity. The concept of wireless power transfer was introduced by Nikolas Tesla. This power is made to be transferred within a small range only for example charging rechargeable batteries etc. For demonstration purposes we have a battery that operates by using wireless power. This requires an electronic circuit for conversion of AC 230V 50Hz to AC 12V, high frequency and this is then fed to a primary coil of an air core transformer. The secondary coil of the transformer develops 12V high frequency. The system also measures the charge in the battery and charges it until it reaches a 00% capacity. For this purpose we use an Avr family microcontroller that constantly measures battery charges and charges battery automatically until it reaches 100% capacity and stops charging the battery as soon as the charge reaches 100%. Therefore by this way the power gets transferred through primary coil to secondary coil that are separated by certain distance around 4cm. The range may be increased by increasing coil size accordingly. Here the primary coil acts as transmitter and secondary coil receives the power to run a load. This project can be used to charge batteries of a various devices and applications such as battery charged scooters and vehicles without plugging in as well as measure their charge.

Saturday, 28 November 2015

Human Speed Detection Project

The main aim of this project is to detect speed of human. Thus this system proves very beneficial in areas of sports. In order o record the speed of humans, this system uses a handheld radar gun pointing towards the person of whose speed is to be detected. In case of running race, it may be required to detect speed of the participants to take the decision or for some other reason. The proposed system calculates the speed by considering the time taken parameter to travel from start to end point. For this IR transmitter and receiver are installed on either of the road side on the set points. Calculation of the time taken by the human is done by the control unit. The speed of the human is displayed on an LCD Screen.

Friday, 27 November 2015

Advanced Military Spying & Bomb Disposal Robot

This system is very beneficial in areas where there is high risk for humans to enter. This system makes use of robotic arm as well as robotic vehicle which helps not only to enter an area involving high risk but also to pick whatever object it wants to. The system also includes night vision camera which will not only allow viewing whatever will be recorded in day time but also during night. The whole system is controlled via RF remote. The system sends commands to the receiving circuit mounted on the vehicle through push buttons. The receiving circuit involves 8051 microcontroller and a receiver which receives commands sent by the transmitting circuit. At first the system is set to control the movement of vehicle. In order to set the system in a mode that operates the arm. At first the user needs to press the push buttons for moving the vehicle in whichever direction it wants i.e. forward, backward, right or left direction. In order to make the arm movement, the user needs to long press the forward and backward push buttons. Thus this system makes use of camera, robotic arm and robotic vehicle to enter a high risk involving area and also to pick, move and drop an object as well as record the place wherever the system goes and later view it for future reference.

Thursday, 26 November 2015

PC Based Home Automation

Our proposed system allows user to automate his/her home appliances through simple mouse clicks. We bring the entire home automation functionality on users PC. User may operate all lights fans easily while working on his/her PC bys simply clicking on a user friendly computer application. Here we use serial communication to communicate between the PC and microcontroller based circuit. The microcontroller is used to receive and decode load switching commands sent theough PC serially and then operate loads accordingly. Our system also allows user to get status of loads current status. In this case the pc sends a status request to the microcontroller circuit and the microcontroller then retrieves the load status and sends this data serially to the PC. The PC appilcation now receives the data and displays the results to the user. Thus this system demonstrates the use of microcontroller
based PC home automation system.
Note: This project only works on Computers having Serial communication port, which is usually present in desktop computers not on laptops