MOTION ACTIVATED WEBCAMChen Zhu

GJL 210, ECE Department

Outline

• Project Overview

• Webcam

• Motion Sensor

• Software Interface

• Sample Video

• Conclusion

Project OverviewThe objective of this project is to build a surveillance system by using webcam and motion sensor.

According to the requirements, this system should include following features• Motion trigger mechanism • Video recording• Alert capability

Webcam

Logitech Webcam C250

• Enhanced VGA sensor

(640 * 480 pixels)

• USB 2.0

Motion Sensor

RF IDeas pcProx Sonar

• Adjustable detection range

• Programmable keystrokes

and timing delay

• USB port

Motion Sensor

RF IDeas pcProx Sonar (specifications)• Typical read range: Adjustable 14” – 60” (35.56cm – 152.40cm)• Dimensions: 1.75” x 1.75” x 7/8” (4.45cm x 4.45cm x 2.2cm)• Weight: .4 lbs (181.4.g)• Power requirements and interface: 5V via USB port• LED: Red, amber and green• Transmit frequency: 40 kHz• Operating temperature range: 40° to 120°F (4.44° to 48.8°C)• Operating humidity range: 0% to 95% relative humidity, non-

condensing

Software Interface

Software Interface

Software Interface

Sample Video

Conclusion

• Meet the design requirements

• Performance

• Delay of triggering computer (Lock, Sleep…)

• Delay of keystrokes (programmable)

• Delay of video recoding

Thanks!