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Team NinjaTeam Ninja
Intelligent VacuumIntelligent Vacuum
Introduction/OverviewIntroduction/Overview
Project description and motivationBlock diagram of approachImplementation of subsystemsScheduleDivision of laborRisk and contingency plan
Project Description and Project Description and MotivationMotivation
Self-controlled device– Intelligently navigates entire room
while vacuuming– Detects proximity and avoids
collision with walls and obstacles– Battery Powered
Assist disabled persons keep their living space clean
Physical DescriptionPhysical Description
Small enough to get under coffee tables, beds
Round, approximately 1 ft in diameter
Lightweight as possible
Block Diagram of Block Diagram of ApproachApproach
User InterfaceUser Interface
Limited user interfaceOn/off switchMode selection
– Continuous, trash detection, ghost mode, room mapping
– Room sizeDisplays
– Battery life, mode, etc.
VacuumVacuum
Commercial vs. “Homemade”
Integration with the rest of the system
Constraints– Battery powered– Lightweight– Quiet
Mobility FunctionsMobility Functions
Steer, move, brake– All three functions
implemented with stepper motors
– Ball bearing castors to help with movement/support
Requirements – Two-way motoring– Two independent
motors (Right and Left)
BrainBrain
Motorola HC11K4 Microcontroller
“Intelligence” of our system– Receive and analyze
data from the peripheral sensors
– Control the vacuum’s movement
– Implementation of the different modes
Peripheral SensorsPeripheral Sensors
IR sensors– Sharp GP2D120
Analog output 4-30 cm detection
range
– Detects when an object is close
– Sends an output back to the brain
Peripheral SensorsPeripheral Sensors
Limit switch– “Pressure sensor”– Detects when you
touch an object– Sends an output
back to the brain
Peripheral SensorsPeripheral Sensors
IR vs. limit switch– IR limitations– Limit switch limitations– Implementation of both types
Sensor/Brain InterfaceSensor/Brain Interface
Sensor output to brain input
A/D converter
Battery PowerBattery Power
Requirements– Sufficient power for vacuum, motor,
etc.– Power converters
Max232 chip
– Rechargeable
ScheduleSchedule
Division of LaborDivision of Labor
Kevin – Microcontroller programming, communication between devices
Tim – Communication with peripheral sensors, power supply
Simone – Mobility functions, vacuum integration
Risk and Contingency Risk and Contingency PlanPlan
Potential problems– Group inexperience– Sensor limitations– Communication between devices– Vacuum integration
Weight, power consumption
– Small group Division of work
Risk and Contingency Risk and Contingency PlanPlan
Contingency plan– Move to Mexico and become scuba
instructors– If vacuum integration isn’t possible
Sneaky, ninja-like alarm clock
ConclusionConclusion
Project description and motivationBlock diagram of approachImplementation of subsystemsScheduleDivision of laborRisk and contingency plan
Questions?Questions?
Kevin Riegner [email protected] Palagi [email protected] Shen [email protected]
