D.H.S. Digijock Home Security ECE477 – Team 7: Linda Stefanutti Zach Smith Stuart Pulliam Will Granger

What we need? (1) Detector Unit: ◦ Microcontroller ◦ Smoke detector ◦ Temperature measurement ◦ Motion detector ◦ Noise detector ◦ Speaker ◦ LCD screen ◦ LED

What we need? (II) Central Unit: ◦ Computer Platform ◦ USB key pad ◦ Speaker ◦ USB LCD Screen ◦ Ethernet Connection

Block Diagram

Major component analysis Computer platform ◦ Intel Atom board vs Asus wireless router Microcontroller ◦ Freescale MC9S12C vs Microchip PIC18F25K22 Wireless module ◦ MRF24WB0MA Wi-Fi vs WRL XBee

Project-Specific Success Criteria An ability to sense motion based on temperature variance, noise above 90dB, the presence of smoke/combustion with a photoelectric amplifier, and measure temperature with a thermocouple amplifier. An ability to encode and transmit data packets wirelessly from/to the remote sensors with a sensor identification address included in each packet. An ability to arm/disarm the security system and to alert the user (visually, audibly, and through ) of emergency conditions from both the central monitoring station and the remote sensor units. An ability to time stamp events and log them in non-volatile memory on the central monitoring system. An ability to display event logs and operational status on an LCD (as well as a webpage hosted by an embedded web server).

Questions