Intelligent Photoelectric Smoke Detector

Student: David Deng

Supervisor: Richard Cocks

Category: Engineering Thesis Project - Electronics

In our world today, fire is still a major issue. It kills people and damages properties. Besides from natural fires like bush fires, most of them are actually from or within buildings. While the methods and devices of ceasing flames from burning are well developed, it seems that it is not always good enough. For that reason, development of devices to detect and warn people about early fires became much more important.

Through the history of the past few decades, it has proven that fire alarms or fire detectors are very effective and have saved many people's lives.

My thesis mainly deals with the use of two major components - Radio Frequency (RF) Transceiver and Photoelectric (Optical) Smoke Detector. The aim was to combine RF transmission with smoke detection to provide fire detectors the ability to work as a network. When fire has been detected by one of the detectors, it would send a signal via RF transmission to other detectors, with the same RF transceiver, in the building while at the same time activating its alarm. On the other hand, when the fire detector receives signal from other detectors in the network, it then activates its own alarm immediately.

Thesis Document (PDF)

Poster Presentation (PDF)