SDP 2009 Team Siqueira

Rohan Balakrishnan (CSE) Conan Jen  (EE)Andrew Lok (EE)

Jonathan Tang (EE)

MAPPER: A Perfectly Portable Exploration Robot

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SDP 2009 Team Siqueira

Overview of Presentation• Brief overview of our project. • The problem that we are addressing.• Our implementation of the solution.• Cost break-down• What we plan for demo day. • Demonstration

SDP 2009 Team Siqueira

The Problem• Reconnaissance is always important for the military and

search and rescue teams.• With importance of human lives, robots are a perfect

replacement.• Solution would be something small, and expendable.  

SDP 2009 Team Siqueira

Our Solution• Robotic platform capturing information about its

surroundings• Wireless communication link will transfer data back to

PDA or laptop• Transferred data is then used to construct a 2-D bird's

eye view of the environment

SDP 2009 Team Siqueira

• Specs met are in boldo Scan scope: 20'x20' indoor roomo Method: Ultrasonic sensor mounted on stepper motor for

360 degree rotationo Scan time: 5-15 mins (to complete 20'x20' room)o Minimum detectable obstruction size: 1'x1'o Wireless communications: 100+ fto Weight: 1-2lbso Expected Battery Life: 10 rooms per charge

CDR Specifications

SDP 2009 Team Siqueira

Flow chart of system

SDP 2009 Team Siqueira

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Power

Hello

SDP 2009 Team Siqueira

 

PCB Layout

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SDP 2009 Team Siqueira

Picture of robot3.7'' diameterMin Operating Voltage: 3VMax Operating Voltage: 7VPowered by: AAA batteries (x4)

SDP 2009 Team Siqueira

• Initial concerns were going straight• Had issues with both DC motors outputting the same• Found that motor 1 has problems with speeds from 0-

30• Added a digital compass to our system • Found method of calibrating and correcting heading

Movement

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SDP 2009 Team Siqueira

Demo Day• How do we expect to demo?

o Small model room with a few objects in ito A laptop set up for the GUI

SDP 2009 Team Siqueira

Demo

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