ARM Based Bank Lockers Safety System Using Digital Key Password With Door Access Facility.

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1 ARM Based Bank Lockers Safety System Using Digital Key Password With Door Access Facility. Introduction: Some people will try to steal the property which may endanger the safety of money in the bank, house and office.to overcome the security threat, most people will install bunch of locks or alarm system. Security is a primary issue in a modern domestic and office environment. The technological advancement of human civilization has forced us to modify every aspects of our life to new standard. No parts of human life remain untouched from the technological breakthrough Almost all the traditional method of accomplishing the daily work is heading towards the development. Security is the prime concern in our day-today life. Everyone wants to be as much secure as possible. The main goal of this project is to design a locker security system using ARM controller technology which can be organized in bank, secured offices and homes. In this system only authenticated person can recover money from locker. We can implement a locker security system based on ARM controller door locking system using ARM controller which can activate, authenticate and validate the user and unlock the door. When the person sends the password to the microcontroller, it will verify the passwords entered by the keyboard (by person present in front of locker).if the entered password is correct then locker will be opened otherwise it will remain in locked position.this system is more secured.

2 BUFFER DRIVER RELAY Block Diagram: DOOR CONTROL 4 X 4 KEY PAD INTERFACE ARM PROCESSOR LCD DISPLAY +12 Volts +5 Volts 230 V, AC TRANSFORMER RECTIFIER FILTER REGULATOR HARDWARE REQUIREMENTS: SOFTWARE REQUIREMENTS: ARM 7 / Cortex M3, LCD, Relay Driver, Relays, Resistors, Capacitors, LEDs, Crystal, Diodes, Transformer, Voltage Regulator, Push Button. Keil compiler uvision 4, Language: Embedded C or Assembly, WLPRO Programmer

3 Block diagram explanation Power supply unit This section needs two voltages viz., +12 V & +5 V, as working voltages. Hence specially designed power supply is constructed to get regulated power supplies. 4X4 Keypad: A keypad is a set of buttons arranged in a block or "pad" which usually bear digits, symbols and usually a complete set of alphabetical letters. If it mostly contains numbers then it can also be called a numeric keypad. Keypads are found on many alphanumeric keyboards and on other devices such as calculators, push-button telephones, combination locks, and digital door locks, which require mainly numeric input. ARM processor ARM is a computer processor based RISC architecture. A RISC-based computer design approach means ARM processors require significantly fewer transistors than typical processors in average computers. This approach reduces costs, heat and power use. The low power consumption of ARM processors has made them very popular: The ARM architecture (32-bit) is the most widely used architecture in mobile devices, and most popular 32-bit one in embedded systems. Buffers Buffers do not affect the logical state of a digital signal (i.e. a logic 1 input results in a logic 1 output whereas logic 0 input results in a logic 0 output). Buffers are normally used to provide extra current drive at the output but can also be used to regularize the logic present at an interface.

4 Drivers This section is used to drive the relay where the output is complement of input which is applied to the drive but current will be amplified. Relays It is a electromagnetic device which is used to drive the load connected across the relay and the o/p of relay can be connected to controller or load for further processing. Methodology: This project is developed for the door access facility for Bank Lockers Safety System. The main modules in this project are 4X4 Keypad, ARM controller unit with LCD display and Door. This whole model will be there in the bank. This model has 4X4 keypad for password entry to open the locker door. If the person is authorized then only the locker door will be opened and if the person is unauthorized the door will not be opened. First the person has to enter the password in order to open the door, then entered password information will be given to ARM controller, then the ARM controller analyses the signal and if the password is correct then the controller activates the door(door will be opened). If the password is wrong then the controller deactivates the door. So from this project only the Authorized person can access his Bank locker. Advantages: 1. Only the authenticated person can recover money from locker. 2. Makes an activity safer and easier 3. Time saving 4. Sophisticated security 5. No manual errors.

5 6. Need not to carry ant card. 7. Others cannot steel the user s entry key Disadvantages: 1. Requires Expertise. 2. It has less memory. Applications: 1. This project can be implemented in Home, School, Colleges, and Companies etc 2. Wherever locker security is important there we can implement this project.