Automatic Door Lock System Using Biometrics and Mcu

1 January 2017

This project is dedicated to our Parents who have never failed to give us financial and moral support, for giving all our need during the time we developed our system and for teaching us that even the largest task can be accomplished if it is done one step at a time. I dedicate this dissertation to my family, especially… To our Mother and Father for opening my eyes to the world; To our professors for their patience and understanding; To our friends for instilling the importance of hard work and higher education; To all the people who helps us accomplish this work We all thank you.

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This device can also use scheduling for a simple and better performance. It can also be access using biometrics on a register fingerprint. An automatic door operating system includes a computer connected to operate a door by means of a unidirectional linkage system including the microprocessor and actuator for unidirectional engagement of the door and a control system for selectively opening the door and for controlling the duration of the door open position. The control system includes a variable timing release for variable timing of the duration of the valve opening.

The actuator for the system can be remotely positioned for maintaining the door in open position for sufficient duration to permit passing. The linkage system permits the door to be manually operated totally independent of the operating system or using biometrics. It can be also automatically operated by using a program and scheduling it for some purposes. An electronic lock is a locking device which operates by means of electric current. Electric locks are sometimes stand-alone with an electronic control assembly mounted directly to the lock.

More often electric locks are connected to an access control system. The advantages of an electric lock connected to an access control system include: key control, where keys can be added and removed without re-keying the lock cylinder; fine access control, where time and place are factors; and transaction logging, where activity is recorded. Electric locks use magnets, solenoids, or motors to actuate the lock by either supplying or removing power. Operating the lock can be as simple as using a switch, for example an apartment intercom door release, or as complex as a biometric based access control system.

The most basic type of electronic lock is a magnetic lock (commonly called a mag lock). A large electro-magnet is mounted on the door frame and a corresponding armature is mounted on the door. When the magnet is powered and the door is closed, the armature is held fast to the magnet. Mag locks are simple to install and are very attack resistant. One drawback is that improperly installed or maintained mag locks can fall on people. and also that one must unlock the mag lock to both enter and leave. This has caused fire marshals to impose strict codes on the use of mag locks and the access control practice in general.

Additionally, NFPA 101, Standard for Life Safety and Security, as well as the ADA (Americans with Disability Act) require “no prior knowledge” and “one simple movement” to allow “free egress”. This means that a person must be able to walk up to a door and with one motion (no push buttons, or having another person unlock the door, or read a sign “special knowledge”) and exit. Other problems include a lag time (delay) in releasing as the collapsing magnetic field is not instantaneous. This lag time can cause a user to walk into the door.

Finally, mag locks by design fail unlocked, that is if power is removed they unlock. This could be a problem where security is a prime concern. Additionally, power outages could affect mag locks installed on fire listed doors, which are required to remain latched at all times. Thus, a mag lock would not meet current fire codes as the primary means of securing a fire listed door to a frame. Because of this, many commercial doors (this typically does not apply to private residences) are moving over to stand alone locks, or electric locks installed under a Certified Personnel Program.

The first mechanical recodable card lock was invented in 1976 by Tor Sornes, who had worked for VingCard since the 1950s. The first card lock order was shipped in 1979 to Westin Peachtree Plaza Hotel, Atlanta, USA. This product triggered the evolution of electronic locks for the hospitality industry. Electric strikes (also called electric latch release) replace a standard strike mounted on the door frame and receive the latch and latch bolt. Electric strikes can be simple to install when they are designed for drop-in replacement of a standard strike, although some electric strikes require that the door frame be heavily modified.

Installation of a strike into a Fire Listed Door (for open backed strikes on pairs of doors) or Frame must be done under listing agency authority if any modifications to the frame are required (mostly for commercial doors and frames). Since there is no current Certified Personnel Program to allow field installation of electric strikes into fire listed door openings, listing agency field evaluations would most likely require the door and frame to be de-listed and replaced. Electric strikes allow mechanical free egress: As a user leaves, he operates the lockset in the door, not the electric strike in the door frame.

Electric strikes can also be either fail unlocked (except in Fire Listed Doors, as they must remain latched when power is not present), as a mag lock, or the more secure fail locked. Electric strikes are easier to attack than a mag lock. It is simple to lever the door open at the strike, as often there is an increased gap between the strike and the door latch. Latch guards are often used to cover this gap. Electric mortise and cylindrical locks are drop in replacements for the door mounted mechanical locks. A hole must be drilled in the door for electric power wires.

Also a power transfer hinge is used to get the power from the door frame to the door. Electric mortise and cylindrical locks allow mechanical free egress. Electric mortise and cylindrical locks can be either fail unlocked or fail locked. In the US, UL rated doors must retain their rating. In new construction doors are cored and then rated. In retofits, the doors must be re-rated. Electrified exit hardware, sometimes called panic hardware or crash bars, are used in fire exit applications. One pushes against the bar to open it, making it the easiest of mechanically free exit methods.

Electrified exit hardware can be either fail unlocked or fail locked. A drawback of electrified exit hardware is their complexity which requires skill to install and maintenance to assure proper function. Only hardware labeled “Fire Exit Hardware” can be installed on fire listed doors and frames and must meet both Panic Exit listing Standards and Fire listing Standards. Numerical codes, passwords and passphrases Perhaps the most prevalent form of electronic lock is that using a numerical code for authentication; the correct code must be entered in order for the lock to deactivate.

Such locks typically provide a keypad, and some feature an audible response to each press. Combination lengths are usually between 4 and 6 digits long. A variation on this design involves the user entering the correct password or passphrase. Security tokens Another means of authenticating users is to require them to scan or “swipe” a security token such as a smart card or similar, or to interact a token with the lock. For example, some locks can access stored credentials on a personal digital assistant (PDA) using infrared data transfer methods.

Biometrics As biometrics become more and more prominent as a recognized means of positive identification, their use in security systems increases. Some new electronic locks take advantage of technologies such as fingerprint scanning, retinal scanning and iris scanning, and voiceprint.  Radio-frequency identification (RFID) is the use of an object (typically referred to as an RFID tag) applied to or incorporated into a product, animal, or person for the purpose of identification and tracking using radio waves.

Some tags can be read from several meters away and beyond the line of sight of the reader. This technology is also used in modern electronic locks. The goal of the automatic door lock security system should be to provide a safe and secure facility of a one place, employees, staff, patrons and equipment. At the same time, the security system must perform these functions as seamlessly as possible, without interfering with the user objective of easily and simply providing patron services.

A keyless entry remote system is a digital door locking device for home, office, apartments, schools etc. The keyless remote carries an electronic circuit for sending wireless signals to the automatic door. Many keyless remote devices are also equipped to open with the help of the keyless remote. The present age is the age of digital technology. We can find several digital products in the electronics market such as music players, televisions, toys, etc. Many of these products can be operated with remote devices. Remote controlled digital products work on wireless signals.

The remote of an electronic device sends signals to the main device and the device acts according to the signal received or can be automatically controlled by a MCU using a program installed on a computer based server or manually controlled using a biometrics scanner. Manual door locks are no longer a safe option as they can easily be disabled or opened by thieves and burglars. Making a duplicate copy of a manual door key is not impossible now days. To minimize the possibility of theft or a burglar and the safety of equipment inside the establishment, you must buy an effective digital door locking system.

The actuator is the part of the power door lock system that makes it “powered. ” It has a metal or plastic exterior body, and its contents consist of a small electric motor, a series of gears and a small rack and pinion gear assembly. Electrical wires on the actuator’s exterior connect it to both the car’s primary power source and its computer system. When the computer system sends a signal to lock or unlock the door, it allows power to flow to the actuator. This makes the electric motor turn, which then causes a series of interlocking gears to turn along with it.

The gears connect to a small, plastic rack and pinon assembly, which translates the cyclical movement of the gears to the back-and-forth movement of a plastic rod. When this rod moves up, it forces both the latch and the door lock knob to move up. When the rod moves down, it lowers the latch and the door lock knob. Our proposal project is all about “Automated door lock security system”, this project will secure the safety of the rooms, to lessen the work of those security guards to check each room just to check if all doors are open/’lock.

All doors are automatically open/close before or after the class, if the students are still inside the class rooms after the schedule class, the door will automatically locked, because the computer will follow the schedule of each room. The computer is one who control the door lock of each room, it is programmed to it, but it can also control manually incase that the program crashed. It will open the door manually by the professor by using his/her finger print. A door-access-control system that utilizes finger vein patterns was developed.

This is a biometric authentication technology for controlling door access in a convenient way by applying the high level of security provided by finger-vein patterns. Biometrics has started to be applied for civilian-identification purposes like passport inspection. We consider that finger-vein patterns can take a leading role in such applications; accordingly, we will strive to push forward commercialization and development of this product to make finger-vein-pattern authentication more convenient.

The only problem for this device is, when the power is cut the device will not work and the door will not controlled. “Automated door lock system”, this project will secure the safety of the rooms, to lessen the work of those security guards to check each room, all doors are automatically open/close before or after the class, If the students are still inside the class rooms after 5minutes the door will automatically locked, because the computer will follow the schedule of each room.

The computer is one who control the door lock of each room, it is rogrammed to it, but it can also control manually incase that the program crashed, It will open the door manually by the professor by using his/her finger print. The improvement of this device is it uses the newest technology by using the RFID. Door-access control is a physical security system that assures the security of a room or building by means of limiting the access to that room or building to specific people and by keeping records of such accesses. It utilizes an individual-authentication method in order to limit access to specific people.

The most widespread authentication method for such systems is based on smart cards. Such a system limits room access to only those people who hold an allocated smart card. However, in the case of smartcard systems, on top of the difficulty in preventing another person from attaining and using a legitimate person’s card, there is the inconvenience of processing lost cards. In the meantime, accompanying the continuing development of fingerprints as the main biometrics method for individual authentication, the practical application of door-access-control systems utilizing biometric data has begun.

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