WIRELESS PEOPLE COUNTING SENSOR NETWORK,
PEOPLE ATTRACTOR, AND TEMPO INDICATOR
A Project for the Human Computer-Interaction Group

By
Arun Israel (Electrical and Computer Engineering)
and Eric Chieh-Yin Lee (Computer Science)

Abstract: An interactive piece of art was developed to be deployed in a museum space.
The system gathers data based on the number of people and their “presence” within the
measured area and drives the generation and morphing of a visual piece of art using noninvasive
technologies to maintain privacy and minimize annoyance. This system consists
of 3 main components: a wireless people counter, a “birdie”- a device to attract people to
interact with, and a tempo indicator to measure speed of movement. The Wireless People
Counter was built using LEDs used as light sensors and RF links, the Attractor was built
using a Pyroelectric Infrared (PIR) Sensor and Winbond Voice Coder chip, and Tempo
Indicator was built using the PIR sensor. The design choices and implementation were
motivated by keeping an eye towards minimal cost, maximum performance, and
extensibility of system to incorporate future sensor technologies, and maintaining an easy
implementation when more nodes need to be deployed in the system.

Full Report in PDF format (You may need to download this and open it from the desktop)

Source Code

birdy.c, basestation.c, CloudControl.java, node.c, tempo.c

Pictures