Lab Security and Online Lab Monitoring

1
Lab Security and Online Lab Monitoring

• Jeff Bill
• Trevor Brightwell
• Benjamin Stoor
• ECE 345
• TA Lawrence Ronk
• April 26, 2000
• Project 34

2
Purpose

• This project deals with the security of the lab
  and equipment contained within. Due to thefts in
  previous semesters, it is imperative to secure
  the equipment while still providing unhindered
  access to it.

3
Use

• Our project will provide the department (Everitt
  Laboratory 246) a working and efficient means to
  secure expensive equipment.
• Furthermore, our project will enable web users to
  view Everitt Laboratory 246 from their web
  browser.

4
Functions

• To post pictures to a web page that will be
  accessible to all visitors of the ECE345 web
  site.
• To periodically record the status of the lab and
  store recorded pictures in an archive to be
  viewed by an administrator for security purposes.

5
Block Diagram
Camera 1
Web Server
General Web User
Servo
PC Based Machine
Servo Controller
 
Camera 2
Lab Personnel
Shared Drive elbeta/webcam
                         
6
Block Descriptions

• Camera 1 This camera will be used to take
  pictures that will be continuously updated to the
  web.
• Camera 2 This camera will be used to take
  pictures that will be stored in a shared
  directory for security purposes.
• PC Based Machine This computer will contain the
  necessary installed software to handle and
  distribute the images.

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• General Users These users will have access to
  the web camera and will be bale to control the
  aim of the camera.
• Lab Personnel These users will be able to access
  the pictures stored on the shared drive with a
  protected password for security purposes.
• Web Server This server is run by the PC based
  machine and governs the web page.
• Shared Drive (elbeta/webcamy) This drive
  contains our allotted memory (1/2 GBytes) to
  store our archived pictures.

8
Design Issues

• USB port cameras versus parallel port cameras.
• Memory allocation Picture Resolution, refresh
  rate, and drive space.
• L (1/2 gigabyte) / (14 kilobytes Rate 60
  min/h 24 h/day)
• L 24.8 / Rate (pictures / min)
• Servo controller, other parts (resistors, diodes,
  etc).

9
Design

• Photodiode Circuit
• Web Interface
• Palette Layout
• Software (archive and servo control)

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Photodiode Circuit Parameters

• Convert light to logic
• 5volt output when lights are on
• 0volt output when lights are off

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Photodiode Circuit
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Design parameters

• Web interface parameters
• Refresh rate
• Web page reloaded every 15 seconds
• Pictures taken every 15 seconds
• Palette layout parameters
• Mounting camera to servo
• Mobility
• Aesthetics

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Web Interface
 
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Palette Layout
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Photodiode Circuit
Serial Servo Control
D Battery
D Battery
9
9V
9V
D Battery
Servo
9V
Camera 1
Camera 2
D Battery
15
Software
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Servo Control Program

• CGI program (C)
• Communicate with Servo Controller
• Sync Marker
• Servo Number
• Position

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Photodiode Program

• Interface to parallel port
• Check sensor before taking picture
• Default message for low light

18
ISPY

• Interface with cameras
• Archive pictures
• Timestamp
• Create directories

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Web Server

• Run CGI on host computer
• Password protection for archive

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Ordered Parts
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Next Steps

• Power converter for 18v, 9v, 6v
• Image recognition software

22
Conclusion

• All functions worked during our demo
• Our project rules, and it works
• Project 34 (Team Work, Best Project Awards)