S.W.A.T
(Security Watching All the Time)
Jeff Shin
Tyler Stubbs
Paul Kasemir
Pavel Mayyak
Overview
Project Objectives and Purpose
Approach
Sub-systems
Division of Labor
Schedule
Risks and Contingencies
Project Statement
Home Security and Safety
Detection of intruders
Intruder prevention by alarms and lights
Recording of home activity
Generate reports (logs)
Allow remote access
Motivation for Implementing
Allow home owners to always know what is
happening in their house
Allow remote access to the system
Fend off intruders
System Diagram
Control System
Communicates with each sensor
Communicates with Visual Station
Records data from sensors
Responds to events (trigger alarm)
Control System
Main control processor: ATMega128
RF link: ZigBee Wireless
Internet: TBD Ethernet module
Data Storage: SD cards
Alarm Trigger: Standard IO
Programming: C/C++ using Eclipse
Visual Station: Connected via Serial
Sensors
Infrared motion detection
Magnetic proximity for doors/windows
Glass integrity sensor
Temperature sensor
Sensors
Simple control processor: ATMega8
RF link: ZigBee Wireless
Magnetic sensors: HALL effect switch
Glass Integrity: Glass Break Detector
Temperature: Analog or Serial
Infrared Sensor: Self-Designed
Visual Station
Contained within a laptop
Continuously updating sensor values
Graphically displays information
Monitor and control system settings
Alarms
Lights
Noise (siren)
Email
Power Sources
All parts of the system will be powered
by AC
All digital components and chips will
run at 3.3V
Extras
Control the coffee pot or oven
Lock doors
Camera nodes
Real time graphs of each sensor
Other Control Nodes (Turn on lights,
open garage door)
SMS notification
Division of Labor
Programming: Paul and Pavel
PCB Designs: Paul and Pavel
Analog Circuitry: Jeff and Tyler
Power Implementation: Jeff and Tyler
Sensor Construction and
Implementation: Jeff and Tyler
Documentation and Testing: All
Gantt Chart
Budget
STK 500 Programmer
ATMega128
ATMega 8
ZigBee Chips
Temperature Sensor
IR Sensor Components
Magnetic Sensor
Broken Glass Sensor
PCB
Passives
Power Circuitry
Power Supplies
Alarm Lights
Alarm Siren
Buffer Budget
Program MCU on Control System and Sensor Nodes
3 Revs of the Control System MCU
3 Revs each sensor MCU
3 Revs Wireless chips for all MCUs
3 Revs of Temp on all boards
3 Revs of self built IR Sensor
3 Revs of Magnetic Sensor
3 Revs of Broken Glass sensor
3 Revs of PCB (includes shipping/handling)
3 Revs of Passive components
3 Revs of Power for all Boards
Power the Control and Sensor Boards
Simple Alarm
Sound Alarm
Allow for unseen costs
Budget
STK 500 Programmer
ATMega128
ATMega 8
ZigBee Chips
Temperature Sensor
IR Sensor Components
Magnetic Sensor
Broken Glass Sensor
PCB
Passives
Power Circuitry
Power Supplies
Alarm Lights
Alarm Siren
Buffer Budget
$85
$45
$48
$60
$30
$30
$30
$90
$120
$60
$90
$35
$15
$10
$77
TOTAL
$825
Risks/Contingencies
1. Wireless communication adds to
sensor interface complexity
*Remove wireless link from sensors.
Use simple wires.
2. Number of remote units increases
complexity
*Decrease number of remote units
Risks/Contingencies
3. PC interface functionality of graphing
and displaying data
*Simplify the Visual Station graphing
functionality
4. Remote access via web server
*Simplify the web server or use the
Visual Station instead
Questions??
Security Watching All the Time