This is the slide from our Digital Logic Design semester project at NUST SEECS, Pakistan. Proteus diagrams are also shown. Feel free to download and modify
Block diagram reduction techniques in control systems.ppt
Digital Logic Design Project - Modules for Parking Lot Security and Administration
1. DLD PROJECT EZPARKSAAD MAHMOOD
UZAIR BIN FAROOQ
TAIMOOR SHAHZAD (AKA “TIMMY”)
MADE BY SAAD (14BEESMAHMOOD@SEECS.EDU.PK)
2. IDEA
• The concept of passwords is everywhere, from banks to home security to Facebook. Businesses go to great
lengths to secure their information from hackers
• In Pakistan, parked cars get stolen a lot and in 95% cases never get found. The following is an excerpt from the
13th September edition of The Nation from last year:
15,500 is a huge number and this data is only for the Punjab province. 15,500 means 15,500 car owners get
ripped off from something they spent a fortune on in an instant and they can’t even do something about it.
• That’s when we decided to do something about it. We can’t catch thieves but we certainly can prevent cars
from getting stolen
“Prevention is better than cure”
4. A HIGH LEVEL OVERVIEW
• We have made our product specifically for parking lots (with some modification can be used in other
environments)
• The user parks his/her car in the parking space. The sensor enables the EzPark lock mechanisn
• EzPark offers the user to enter a 4-digit pin
• The lock now stops the car from moving around
• In order to open the lock, the user must enter the 4 digit pin. If the input matches the lock gets opened but if
the input doesn’t match the pin, the alarm goes on ( This was an important design consideration because we
don’t want to give the thief more than one chance )
• In addition to this we have made a car counting module that tells the parking lot administration as well as the
users entering the parking space that either the space is empty or not
• So all in all, EzPark is a complete package for parking lot administration and security
5. TECHNICAL DETAILS
• The password is stored in a jumbled form, so thieves can’t extract password easily.
• We used 74179 as registers which has serial in as well as parallel in.
• Four 4-bit Comparator are used to match the password with the input.
• Momentary push buttons are used for the input.
• A 8 x 3 Priority Encoder is used to encode octal to binary.
• J-K flip flop to store output.
10. LIMITATIONS
• Currently only 9 cars can be accommodated using EzPark (but this can be modified to as much cars as
you need)
• The password digits must be between 0 to 7
11. DISTRIBUTION OF WORK
• Saad Mahmood : Final version of logic circuit on PCB, designing PCB non-trivially in Proteus, parts
purchasing, PowerPoint presentation and 10% patching.
• Taimoor Shahzad : Counter circuit on PCB and breadboard , 40% patching work and beautified the
patching.
• Uzair bin Farooq : Logic building , solving singularities in the circuit, initial draft of logic circuit on
Proteus and 50% patching.
12. FUTURE PLANS
• Can be launched to market with some modifications with each piece being economical enough to be
installed on a large scale
• Range of numbers to include full decimal numbers (currently has 0-7)
