Ethernet public address system

Student: Anfang Zhang

Supervisor: Neil Bergmann

Category: Engineering Thesis Project - Computer Systems

Ethernet Public Address System (EPAS) is developed in order to achieve convenience and flexibility over the current ordinary public address system, which traditionally uses a pair wiring as transmisson medium.

The EPAS consists of a central applications controller, microphone module and speaker module. It uses the Ethernet as its communication method. When a microphone or a speaker is plugged into the Ethernet. It will be assigned an IP address for communication over the Ethernet by the Central Applications Controller. Where the voice data from the microphone goes can be managed with the Central Applications Controller.

Each microphone module or speaker module has a RabbitCore 2000 processor build-in, which is for connection establishment between these modules. This microprocessor is a processor with Ethernet on-board, which is ideal for EPAS. The MAS 3587F is an "ALL-IN-ONE" chip which handles MP3 encoding and decoding, also A/D, D/A converting.

Thesis Document (PDF)