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1.REMOTE ACCESS CONTROL AND AUTOMATION SYSTEM FOR ELECTRONIC APPLIANCES USING TELEPHONE LINE
The aim of the project is to access home appliances even though we are outside our home. Here in this project, we use telephone line as control media. The project allows us to control home appliances such as Fan, TV, Motor, and Lamps etc. All we have to do is to connect the gadget to our telephone lines and the output lines of gadget to the respective ac loads to be controlled to access the appliance.The user should dial his phone number followed by a respective device number.The data is thus transferred to our house via telephone lines.Our gadget automatically detects the incoming phone call and establishes a connection.Then it notices the pressed device number and turns on/off the gadget and also gives a beep alert to the caller while a device is turned which helps the caller to know the status of the device. Thus the project is much useful when we move outstations thus allowing the worldwide access via telephone line. The gadget automatically disconnects from the telephone line within 0 seconds from the time of establishment of connection. To prevent the misuse, a password security may be added to prevent the usage of gadget from intruders, which can also be stated as a future enhancement.
2.ENABLING/DISABLING AND WIRELESS CONTROL OF APPLIANCES & DEVICES BY FREQUENCY MODULATION (FM) & DTMF SYSTEMS USING RADIO FREQUENCY TECHNOLOGY
This project allows as to control equipments using RF technology. Here FM signals are used as controlling media. Here in this project, the user is provided with a handset which consists of a DTMF generator, a keypad and a FM transmitter to transmit the signals transferred. The master unit consists of a FM receiver and DTMF to binar y converter and a microcontroller for enabling/disabling the device selected in handset with the use of relays. Thus this simple gadget allows the user to access the home appliances / any appliances wirelessly from any section of the campus since the FM waves can travel any where via the buildings /walls and doors where a IR remote is directional and can’t penetrate through walls or doors. Thus this Project is Highly Effective, Very Economical and much simple to use.
3.AUTOMATED AND UNMANNED CONTROL SYSTEM OF RAILWAY CROSSING USING WIRELESS IR SENSOR, DTMF ENCODER AND FREQUENCY MODULATION TECHNIQUE
This project takes control over the unmanned railway crossing. The railway gate is opened and closed automatically using a microcontroller. The microcontroller is programmed such that it gets the indication of train‘s arrival and departure through a wireless sensor unit. The sensor unit is a composite unit controlling IR sensor, DTMF encoder and FM transmitter. The FM transmitter transmits the DTMF encoded sensor signal to microcontroller unit. The microcontroller unit receives and decoded the transmitted signal. With reference to the signal received the gate is either closed or opened along with an alarm. The future enhancement of the project is that the kit handling can be protected from unauthorized users with the help of password. This project is oneof the advanced project the concept of project was also published in 2003 EFY magazine as a research work Indian railway is one of the huge railways in Asia hence this project will be worthful and reduces the labour cost.
4.INDUSTRIAL AUTHENTICATION AND ACCESS CONTROL SYSTEM USING EMBEDDED SMART CARD
This Project is an advanced technology.Which deals with authentication for trespassing in a concern? In which there is a µC there we are going to register or save the employees Password in side the ROM. Whenever the employee enters, He/She Should enters Password in the Keyboard associated with the µC. The password strings can be compared with the already existing password. If the password is correct the relay switch will open .if the password is wrong the relay switch will close, the alarm will automatically blown.
5.INDUSTRIAL PROCESS CONTROL AND AUTOMATION SYSTEM USING EMBEDDED TECHNOLOGY
Here we have many non-electrical parameters like (Pressure, Temperature, Humidity,etc.,). In the process industries these are all the very important non-electrical parameters. It
will have some set points if that value going beyond the limits(set points). The µC automatically Annunciate to the Workers. We can register the current value (fault) inside the computer through the serial communication. For example the flow pipe having capacity of 1000bars, the fault coming thro the pressure it exceeds 1000bars. Then the whole system will collapse to overcome this problems we will introduce the microcontroller, which will control the pressure, and it will annunciate to the workers.
6.INTELLIGENT AND AUTOMATIC FIRE SECURITY SYSTEM USING INTERACTIVE VOICE DECODER AND TELEPHONE LINE
This Project-Gadget prevents our home/office from the fire accidents. The gadget consists of a temperature sensor, which is to be placed in various positions on the room where
there is risk of fire. The sensor is lm35, which is a three-pin device. The lm35 converts the temperature data as a voltage data which is a analog data and then the data is given to a comparator segment. The comparator compares with the reference temperature and if the input temperature exceeds the reference value, the comparator triggers the microcontroller. The microcontroller in turn drives a interactive voice decoder and also establishes a phone connection to the police and fire service also the device warns about the dangerous temperature level that may cause fire by a loud alar m.
7.AUTOMATIC WATER LEVEL CONTROLLER
This project mainly deals with the level of water in tank automatically. The water sensing elements (copper terminals) are placed at various levels of tank. The wires from the sensors are fed to the microcontroller which is programmed such that it gets the signal from sensors and displays the level of water in a 7 segment it also maintains the water level ther e by driving the pump automatically the corrosion of sensor is not noticed here since negligible current flows through the sensor which ensures long life
8.IMPLEMENTATION OF GLOBAL AND REMOTE POSITIONING SYSTEM FOR DEFENCE AND OTHER PURPOSES USING MOBILE NETWORKS
The project is used to spy a particular vehicle and to display the area where the vehicle is to a remote person. The project is worth able for spying for military purpose. In this model
GPS; we use a IR transmitter which is fixed to the vehicle to be spied. The receiver is an IR sensor, which is placed at various positions resembling the mobile tower when the vehicle is inside the coverage range of tower. The tower name is displayed on the LCD display, which is kept at control station. The contact between the control unit and tower is done using the FM signals. Thus this project resembles a mobile phone network where RF is eliminated here due to some laws to use FM transmitter by Indian government and also due to model purpose. Usage of RF here may interfere with other sections since the range of Rf transmitter is large. The compactness of project will be violated hence for a demo purpose actual Rf transmission is replaced with IR transmission.
9.DESIGN AND DEVELOPMENT OF BOMB DETECTING ROBOT
This project is a model of a bomb detector. For a demo purpose, we assume that a bomb emits IR rays (actually a bomb contains metal fillings and chemical,which is violently combustible. The actual sensor is sensible to metals and chemicals used in bomb). The ROBOT consists of IR receiver and microcontroller unit, which drive the wheels of the ROBOT via pairs of DC motors.The receiver pairs placed at the front of the ROBOT resemble that of a car headlight. The ROBOT revolves round for a valid IR signal from the bomb. If it picks the IR rays it moves towards it and warns a loud siren about the presence of bomb. It also gives a voice alert about the presence of the bomb. If this project is implemented practically with some extra features such as calling to police, fire service etc., it can be done.
10.DESIGN AND DEVELOPMENT OF OBSTACLE SENSING AND OBJECT GUIDING ROBOT
This funny ROBOT automatically detects the obstacle in front of it and changes its direction of moving automatically. The principle behind is the IR rays which is reflected back
when there is an obstacle. The two pair of IR trans-receiver is placed in front of the ROBOT,which resembles a car headlight. Whenever the light is reflected back the ROBOT notices that there is an Obstacle and changes its direction by the instruction of microcontroller. A buzzer may be added whenever the ROBO senses the obstacle. This project reflects our programming and hard ware interfacing skill.
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