RFID AND GSM BASED INTELLIGENT MAIL BOX

As the time moves the life style of the persons has completely changed and there is no time for the people for micro management of every issue personally. So, this is the right time to provide some space to the technology into our lives for monitoring the issues which requires our personal presence for the things to happen. One among those issues which require our personal presence is receiving the courier which is sent back if we are not present at the time the courier boy comes to our house. This may lead to the delay in receiving the data and in some scenarios it may also lead to tough situations. So our project aims in providing a very reliable and very user friendly solution to overcome this kind of problem.
As we know the advancements in the Radio Frequency and GSM technologies and making use of those existing technologies we can design a device which is capable of identifying the arrival of courier and forward the same to the receiver and also send an acknowledgement to the courier office so that they do not require the signature of the particular person for whom the courier is meant for. The basic idea of the system is to employ an RF ID tag to the courier and send the identity number to the receivers mobile. The receiver of the courier will have a letter box which has an RF reader and a dedicated GSM modem in it. As soon as the courier boy drops the letter in to it the RF reader reads the identity number of the tag and informs the same to a micro controller and compares it with the identity number send by the courier office and if both are one and the same then it sends message to the receiver and also to the courier office about the arrival of the courier.
To design the entire system we require a microcontroller which acts as a medium of communication between the RF reader and the GSM modem. The major advantage of this system is the presence of the GSM modem enables the device to communicate with the receiver no matter where ever he was present on the globe.

ENERGY CONSERVATION SYSTEM USING PIR032

The conservation of energy states that the total amount of energy in any closed system remains constant but can't be recreated, although it may change forms, e.g. friction turns kinetic energy into thermal energy. In thermodynamics, the first law of thermodynamics is a statement of the conservation of energy for thermodynamic systems, and is the more encompassing version of the conservation of energy. In short, the law of conservation of energy states that energy can not be created or destroyed, it can only be changed from one form to another.
Energy conservation is the practice of decreasing the quantity of energy used while achieving a similar outcome. This practice may result in increase of financial capital, environmental value, national security, personal security, and human comfort. Individuals and organizations that are direct consumers of energy may want to conserve energy in order to reduce energy costs and promote economic, political and environmental sustainability.
There is provided an infrared sensor unit for deactivating an electrical appliance when left unattended by its user. The sensor unit includes a passive infrared sensor for sensing the user through a field of infrared light provided within a viewable distance of the electrical appliance. An adjustable timer is in electrical communication with the passive infrared sensor for counting toward a predetermined amount of time when the user is not sensed within the field of infrared light. The sensor unit further includes a controller device which is in electrical communication with the adjustable timer for deactivating the electrical appliance upon reaching the predetermined amount of time.
A Passive Infra-Red (PIR) sensor is an electronic device commonly used in security lighting, and burglar alarm systems. A PIR sensor is a motion detector which detects the heat (infrared) emitted naturally by humans and animals. When a person in the field of vision of the sensor moves, the sensor detects a sudden change in infrared energy and the sensor is activated.

GSM BASED AUTOMATIC IRRIGATION SYSTEM

The project is mainly used to control the on-off action of a motor in the field based on the dry and wet conditions of the field using GSM Technology.
The Main Components of Project
1) Microcontroller
2) Vehicle or Robot
3) DC Motors, to run the Vehicle
4) Sensing logic
5) LCD, to display the status of the field and the communication between circuit and the user mobile.
6) Power Supply
Working:
This project is developed based on EMBEDDED and GSM Technology. When a field is in the dry condition, the sensing logic senses the state of the field and intimates it to the microcontroller. It in response makes the motor on. We can know the status of the field by sending a message to the GSM modem which is placed at the field. Through our mobile we can switch on-off the motor by sending the respective commands to the kit through the GSM modem. Thus the irrigation motor can be controlled through our mobiles using GSM technology.

Zigbee based energymeter reading on PC

The purpose of this project is to read the Domestic Energy meter and transmit the reading to PC through Zigbee wireless transmission. This system helps to give a quick reference to the users on PC. This can be achieved by the use of control unit that continuously reads the meter into its permanent (non-volatile) memory location. Then the control unit takes the responsibility to transmit the data to the other receiver module, which is being connected to PC (Computer). At transmitter side the meter reading will be displayed on the LCD(display). The final output of this project is going to be the reading of the meter to be displayed on computer monitor and it also gives the bill using printer which connected to PC (computer).

There are two controlling modules at the two ends i.e. is one at the energy meter end and the other at the computer based display. The communication between these two modules is taken place with the help of a Zigbee module. Zigbee is a specification for a suite of high level communication protocols using small, low-power digital radios based on the IEEE 802.15.4-2003 standard for wireless personal area networks (WPANs)

The control units which we are making use can also be termed as an onboard computers or microcontrollers. The name onboard computer is given sue to the presence of it’s built in memory (RAM, ROM) and also due to its input and output ports. The control unit at the energy meter end reads the meter readings and forwards it to the other end using this Zigbee. The microcontroller also displays the energy meter readings on LCD which is interfaced with the microcontroller. This information is received by the controller at the PC with the help of the Zigbee provided to it and prints the same into the PC (Hyper terminal). And also it gives the bill using printer.
The major advantage of this system is making use of Zigbee module which helps for a wireless transmission. Zigbee is a low-cost, low-power, wireless mesh networking proprietary standard. The low cost allows the technology to be widely deployed in wireless control and monitoring applications, the low power-usage allows longer life with smaller batteries, and the mesh networking provides high reliability and larger range.

Smart Card based access control system

Smart card based access control system is an application specific project, which can be used universally any where security is prime concern. The security to a property, organization and other purposes where a human being entering into can be checked or segregated between authorized and unauthorized persons by implementing this project.
Secure life, secure property is what everyone desires. So a lot of money and interest is spent in this area. The important installations are to be protected from unauthorized intruders, as well as home are to be secure from same factors. Today man less intelligent automatic machines are used in every field so that manpower can be least used and efficient work can be achieved .The intelligent machine only solution in this field is microprocessor. However the microprocessor forms complex structure. Therefore micro controller is the best solution.
The Smart card based access control system presented here is an access control system that allows only authorized persons to access a restricted area. 

Security system with Image capturing

Now-a-days security is very important in every aspect. To protect the data, information in the offices, business establishments from leakage and for theft control security is important. So many people prefers security system arranged usually at the entrance of an restricted area
An Access control system forms a vital link in any security chain. The Microcontroller based digital lock presented here is an access control system that allows only authorized persons to access a restricted area. This is helpful in industrial areas where only authorized persons are allowed to enter into a particular area.
The system uses a circuitry built around 8051 Micro controller, where the security is provided by entering password to enter into restricted areas. Coding for the project will be developed in embedded C. Flash magic will be used for loading of programs into microcontroller. In addition to that the security system is advanced with the usage of wireless cameras, which is attached to the entire system so that it can capture the image of a person and where we can identify whether he is a authorized or not. Because a non- authorized person may also enter the password.
The system comprises a small electronic unit with a numeric pad, Green/Red LEDs,buzzer and LCD display. It also consists the wireless camera outside the door. When an authorized person enters a pre-determined (number password) via the keypad. The wireless camera shoots the image and that image can be viewed on the monitor so that we can check whether the person is an authorized or not. If the entered password is wrong it gives a longer beep of one second.

VEHICLE SPEED CONTROL SYSTEM USING RF COMMUNICATION

Nowadays people are driving very fast, accidents are occurring frequently, we loss our valuable life by making small mistake while driving (school zone, hills area, highways). So to avoid such accidents, this project alerts drivers to control speed for appropriate place.
The main objective is to design a Smart Display and Controller meant for vehicle’s speed control and monitors, which can run on an embedded system. Smart Display & Control (SDC) can be custom designed to fit into a vehicle’s dashboard, and display information on the vehicle to be traveled in the different zone and its automatically controls vehicle’s speed in different zonal state (like school zone, hills area, U-turn, highway etc.).
The SDC is composed of two separate units: zone status transmitter unit and receiver (speed display and control) unit. The transmitter modules operate with a carrier frequency of 418MHz within the 260MHz-470MHz RF spectrum (unlicensed spectrum) thus avoiding any FCC charges or regulations. The wireless transmitter module can send data up to 100 feet away from the vehicle.
Once the information is received from the zones, the vehicle’s embedded unit is automatically alert the driver, to reduce the speed according to the zone, it waits for few seconds, otherwise vehicle’s SDC unit automatically reduce the speed.
In a critical situation many vehicles faces accident, due to this lot of person lost their lives. After that accident also some life can be saved but due to lack of information, time and place it may not be possible. Our project will provide an optimum solution to that draw back. According to this project when a vehicle met with an accident immediately the vehicle number and persons contact number will transferred to police control room or a rescue team. So the police can immediately trace the location from where the message came. Then after conforming the location necessary action will be taken.