Advanced Occupancy System

Mitch WilliamsAdam Winter

Shane Woolwine

Introduction It is our goal to develop a new sensory system that

will allow a system operator to determine the availability of an area of interest. Sensor results are conveyed to a remotely located system display.

This new system is based on a collection of existing technology that will be used to collect real time data within a perimeter of operation.

Three situations concerning area of interest availability have been identified. An individual is located in an AOI. Objects or possessions have been left in an AOI. The AOI is unoccupied.

Motivation Our motivation for this product is to

increase consumer efficiency by developing a product that improves time management through the use of a more advanced organizational system.

Currently methods for determining and monitoring the availability of an area of interest require large amounts of wasted time and effort.

Possible Applications Library Tables & Study Areas Classrooms & Conference Rooms Energy Conservation

Heating and air systems configured to adapt to information collected by the occupancy system.

Sociology What areas do individuals tend to occupy?

Current Competition People Counters

Technology that uses motion detectors to count the number of people in an area of interest to determine occupancy levels

Surveillance & Security Companies Energy Efficiency Companies

Systems that perform tasks such as turning off lights or appliances when they are not in use

Customer Needs Display

The ability to view information from a remote location

Privacy The system does not invade consumer privacy,

i.e. no cameras Appearance

Does not interfere with normal activity Reliability

The system requires minimal user intervention

Customer Needs - 2 Versatility

System is extensible and expandable Can be implemented in a variety of locations

Accuracy Can adjust for different occupancy scenarios

Cost The system is priced affordably

Key Sub Problems

Sense Presence in Area of Interest What sensor(s) can give us the best

information regarding occupancy while still maintaining power and privacy restrictions?

Process Sensor Data What is the best method to accurately

process sensor data and efficiently relay necessary occupant information?

Interesting Sub-Solutions Sense Presence

Motion Sensor• Accuracy concern

Thermal Sensor• Unable to adjust to different occupancy scenarios

Camera• Privacy Invasion

Combination Sonar & Thermal (selected)• Satisfies level of accuracy, desired information,

and most customer needs

Interesting Sub-Solutions - 2

Process Sensor Data FPGA

• Not in our skill set PC

• Not Versatile Sensor Node (selected)

• Versatility & Ease of use

Final Concept

A combination sensor scheme Thermal & Sonar Possibly aggregated in one box or a multi-

part design Sensor Node

A microcontroller with radio Used to analyze sensor data and transmit

relative information

Diagram - Aggregate Model

Diagram - Multi-part Model

Proto-type

Detect people, object, both, or neither in a given area represented by a table

Break occupancy area (table) into a quadrant to show region occupancy

Transmit the data wirelessly to a gateway mote connected to a PC and display information on PC