Senior Design Team SD0609

1
Introduction

• Senior Design Team SD0609
• ECE Card Key Security System
• Nick Moszer
• Raylin Nevland
• Ryan Lindsay

2
Problem

• Current Card Key System in ECE
• System is 20 years old
• Cannot be expanded to more doors
• Increasing security concerns in the department
• Campus replacement solution prohibitively
  expensive

3
Solution

• Senior Design Project
• Harness ECE student brain power
• System can be modular and easily adaptable
• Tailored to ECE faculty operation
• Cost effective solution

4
Requirements

• Build a Modular System
• Change any part and system still works
• Use off the shelf hardware
• Reader systems interchangeable with changing
  needs in the building
• (swipe, proximity, biometric)
• Ability to read Tri-College cards
• Check out ECE equipment and computer account
  creation
• Cost Effective
• Components are inexpensive
• Maintenance is minimal

5
Initial Research

• Start from center and work out
• We need a central controlling unit to process
  input from door readers
• How will we communicate with it and over what
  medium?
• How will we process the input once it is
  received?

6
Central Controller

• Communication Options
• Serial dominant but outgoing
• Ethernet (TCP/IP) incoming standard
• Wireless (TCP/IP) very rare but possible
• Choice Ethernet with TCP/IP
• Allows Power-Over-Ethernet (POE)
• Inexpensive and meets fire code
• No runs more then 100m in building
• Allows for secure closed system
• Follows modular design requirement

7
Central Controller

• Processing Input
• PC with Linux
• Possibly less reliable
• Plethora of Software Options
• Much simpler
• Dr. Farden will be happy
• Embedded Solution
• More Reliable
• Increased Complexity
• Very Limited Software Options
• Choice PC w/ Linux

8
Central Controller
9
Card Reader Overview

• Magnetic Swipe (Omron)
• Proximity (HID)
• RCM2200 Microprocessor (Rabbit Semiconductor)
• 48 24 V Converter (TI)
• 48 5 V Converter (TI)
• 5 V Relay (Generic)
• PCB Board (in-house)
• Door Lock (TBA)

10
Omron Magnetic Card Reader

• Low Cost
• Industry Standard
• Low Power CMOS
• 5 V Operation
• TTL Logic
• Data Stream
• Card Load
• Clock (per track)

11
HID Proximity Card Reader

• Industry Standard
• Low Power CMOS
• 5 V operation
• TTL Logic
• Data Stream
• Card Load
• Clock
• Access Indication
• LED and Beeper

12
Rabbit Semiconductor RCM2200

• Low Cost
• 26 I/O ports
• 10BaseT Ethernet
• 22.1Mhz processor
• Dynamic C
• Highly adaptive
• Large Libraries
• 5 V, 134mA draw

13
Reader Unit Power Conversion

• 48 - 5 V Converter
• Rabbit RCM2200
• Magnetic Card Reader
• Proximity Card Reader
• Relay (Door Lock)
• 48 24 V Converter
• Door Lock Mechanism
• 170mA draw

14
Card Reader Overview
15
Power Requirements

• Rabbit 5V DC with 5 tolerance, 134mA
• Swipe Reader 5V DC with 5 tolerance,
  20mA
• HID ProxPro 5-16V DC, 75mA _at_ 5V
• Door Lock 24V DC, 170mA
• Total Power needed 229mA _at_ 5V
• 170mA _at_ 24V
• Approximately 5.25 W total draw per reader

16
Power Requirements

• Power source
• Decided on Antec 550 W PC power supply
• Delivers 18A on 12V output 216 W
• Powering 12 readers on one supply-
• 216 W / 12 18 W each.
• Power Over Ethernet (POE)
• 1 Ohm Resistance/100 feet
• 350 mA max per line _at_ 48V 16 watts
• Usage only 33 of maximum

17

• Order of Power distribution
• Outlet120 V AC
• PS back-up
• 12V output from PC Supply
• 12V - 48V voltage converter for POE
• 48V - 24V voltage converter Door Lock
• 48V 5V voltage converter Rabbit, Proximity
  and Swipe reader

18
Power Flow Chart
19
Expenditures

• Development Costs 270
• Central Controller (per 12 doors) 1100
• Cost per door 550 to 850

20
Development Costs

• Rabbit Development Board 200
• 3 track swipe reader 70
• Everything else will be used in final product.

21
Central Controller

• PC Components 350
• Ethernet Switch 79
• Ethernet Punch-down block 55
• 12V to 48V DC to DC 94 per 3 doors
• Enclosure 90
• Heat control and monitoring 50
• Misc 40

22
Cost Per Door

• Electric Lock 300
• Input Readers 20 to 300
• Rabbit RCM2200 60
• DC to DC Converters 40
• Plenum Ethernet lt 10
• PCB In-House?
• Enclosure 50
• Misc 20

23
Summary

• Solution tailored to ECE faculty
• Cost effective
• Easy to use interface
• Modular system that is adaptable to next
  generation identification systems
• Components readily available
• Increased security in every room
• Designed to meet the needs and meet the long term
  goals of our department

24
Future Progress Planning
25
Questions?