PRESENTED BY
AJAY SINGH
AKANKSHA SAKLANI
VIPIN CHANDRA

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INTRODUCTION
The concept of this project is to develop a proposal of security system for airports with multiple levels of security for allowing any person to enter or exit the airport. The use of rfid tags can aid the detection and identification of possible threats in diverse range of applications from passenger check-in at airports to detection of intruders.
The main aim of this project is to improve airport efficiency and security through the active tracking of passengers and staff using rfid tags combined with wireless webcam. Initially some predefined data is written to the rfid card and software must be running continuously at the background in the microcontroller. The software will be continuously checking for the card. When the card is shown towards the reader, the reader sends an interrupt to microcontroller. When this interrupt is received by the software, it first reads the user id number which is already written to the card and compares it with details in the data base and allows person.
COMPONENT DESCRIPTION
1- REGISTORS
A resistor is a two-terminal electronic component that produces a voltage across its terminals that is proportional to the electric current passing through it in accordance with Ohm's law:
V = IR
Resistors are elements of electrical networks and electronic circuits and are ubiquitous in most electronic equipment. Practical resistors can be made of various compounds and films, as well as resistance wire (wire made of a high-resistivity alloy, such as nickel/chrome).
2- LIQUID CRYSTAL DISPLAY
A liquid crystal display (LCD) is a thin, flat electronic visual display that uses the light modulating properties of liquid crystals (LCs). LCs do not emit light directly. LCDs therefore need a light source and are classified as "passive" displays. Some types can use ambient light such as sunlight or room lighting. There are many types of LCDs that are designed for both special and general uses. They can be optimized for static text, detailed still images, or dynamic, fast-changing, video content.
They are used in a wide range of applications including: computer monitors, television, instrument panels, aircraft cockpit displays, signage, etc. They are common in consumer devices such as video players, gaming devices, clocks, watches, calculators, and telephones. LCDs have displaced cathode ray tube(CRT) displays in most applications. They are usually more compact, lightweight, portable, and lower cost. They are available in a wider range of screen sizes than CRT and other flat panel displays.
LCDs are more energy efficient, and offer safer disposal, than CRTs. Its low electrical power consumption enables it to be used in battery-powered electronic equipment. It is an electronically-modulated optical device made up of any number of pixels filled with liquid crystals and arrayed in front of a light source (backlight) or reflector to produce images in color or monochrome. The earliest discovery leading to the development of LCD technology, the discovery of liquid crystals, dates from 1888.By 2008, worldwide sales of televisions with LCD screens had surpassed the sale of CRT units.
Specifications
Important factors to consider when evaluating an LCD monitor:
 Resolution: The horizontal and vertical screen size expressed in pixels (e.g., 1024×768). Unlike CRT monitors, LCD monitors have a native-supported resolution for best display effect.
 Dot pitch: The distance between the centers of two adjacent pixels. The smaller the dot pitch size, the less granularity is present, resulting in a sharper image. Dot pitch may be the same both vertically and horizontally, or different (less common).
 Viewable size: The size of an LCD panel measured on the diagonal (more specifically known as active display area).
 Response time: The minimum time necessary to change a pixel's color or brightness. Response time is also divided into rise and fall time. For LCD monitors, this is measured in btb (black to black) or gtg (gray to gray). These different types of measurements make comparison difficult.
 Input lag - a delay between the moment monitor receives the image over display page link and the moment the image is displayed. Input lag is caused by internal digital processing such as image scaling, noise reduction and details enhancement, as well as advanced techniques like frame interpolation. Input lag can measure as high as 3-4 frames (in excess of 67 ms for a 60p/60i signal). Some monitors and TV sets feature a special "gaming mode" which disables most internal processing and sets the display to its native resolution.
 Refresh rate: The number of times per second in which the monitor draws the data it is being given. Since activated LCD pixels do not flash on/off between frames, LCD monitors exhibit no refresh-induced flicker, no matter how low the refresh rate.[3] High-end LCD televisions now feature up to 240 Hz refresh rate, which allows advanced digital processing to insert additional interpolated frames to smooth up motion, especially with lower-framerate 24p material like the Blu-ray disc. However, such high refresh rates may not be supported by pixel response times, and additional processing can introduce considerable input lag.
 Matrix type: Active TFT or Passive.
3- CONNECTORS
Features
• Standard .100" Spacing
• Current Rating Up To 3A
• Temperature Range: -55oC to +120oC
• Contact Surface: Tin Plated
4- TRANSMITTER & RECEIVER
Rx/Tx subsystems consist of components optimized to take advantage of smart partitioning by integrating signal conditioning components (amplification, AGC, and filtering), receive path data conversion (ADCs), and in many cases transmit path data conversation (DACs) and interpolation filtering. Many of these subsystems also include on board clock generation and PLL to ease the demanding clocking requirements required in today's communications systems.
Transmitter and Receiver Subsystems
I. ADRF6603:- 2100 MHz to 2600 MHz Rx Mixer with Integrated Fractional-N PLL and VCO
II. AD6659:- Dual IF Receiver
III. ADRF6602:- 1550 MHz to 2150 MHz Rx Mixer with Integrated Fractional-N PLL and VCO
IV. ADRF6750:- 950 MHz to 1575 MHz Quadrature Modulator with Integrated Fractional-N PLL and VCO
V. AD9969:- Single-Supply Cable Modem/Set-Top Box Mixed-Signal Front End
VI. ADF9010:- 900MHz ISM Band Analog RF Front End
VII. AD6657:- Quad IF Receiver
5- GEAR MOTOR
Gear motors are used to move vehicles. An Gear motor (or asynchronous motor) is a type of alternating current motor where power is supplied to the rotor by means of electromagnetic induction.
An electric motor converts electrical power to mechanical power in its rotor (rotating part). There are several ways to supply power to the rotor. In a DC motor this power is supplied to the armature directly from a DC source, while in an Gear motor this power is induced in the rotating device. The primary side's currents evokes a magnetic field which interacts with the secondary sides mmf to produce a resultant torque, henceforth serving the purpose of producing mechanical energy. Induction motors are widely used, especially polyphase induction motors, which are frequently used in industrial drives.
SPECIFICATIONS
I. Rated voltage: DC9V
II. Rated current: <40 mA
III. Rated speed: 1.5 r/min
IV. Rated torque: 7 kgf.cm
V. Max efficiency: >0.4
VI. Noise: <60dB
VII. Coil temperature rise: <60 k
VIII. Intension: AC600V 50Hz/min
IX. Insulation resistance: 100 MΩ