Project Objective Project Objective Project Objective Project - - PowerPoint PPT Presentation

• Project Objective

Project Objective Project Objective Project Objective

• Design

Design Design Design

• SolidWorks Model

SolidWorks Model SolidWorks Model SolidWorks Model

• Physical Model

Physical Model Physical Model Physical Model

• Circuit Diagram/Bill of Materials

Circuit Diagram/Bill of Materials Circuit Diagram/Bill of Materials Circuit Diagram/Bill of Materials

• Cost Estimate

Cost Estimate Cost Estimate Cost Estimate

• Arduino

Arduino Arduino Arduino Code Code Code Code

• Live Demo

Live Demo Live Demo Live Demo

• Future Implementations

Future Implementations Future Implementations Future Implementations

• Closing

Closing Closing Closing

• Create a device that is able to detect stationary or moving obstacles

Create a device that is able to detect stationary or moving obstacles Create a device that is able to detect stationary or moving obstacles Create a device that is able to detect stationary or moving obstacles Report proximities of obstacles to the individual

• Designed for people:

Designed for people: Designed for people: Designed for people: With visual impairments Distracted by:

Cellphones and/or other electronic devices Low environmental awareness from fatigue

• Minimize the probability that the wearer will be injured by a

Minimize the probability that the wearer will be injured by a Minimize the probability that the wearer will be injured by a Minimize the probability that the wearer will be injured by a head head head head+ + + +on

• n
• n
• n

collision collision collision collision

• Two modes exist

Two modes exist Two modes exist Two modes exist Daytime mode

Detection of static or moving obstacles

Nighttime mode

Detection of car headlights from oncoming traffic The eccentric motor alerts the wearer once a specific light

intensity threshold has been reached A pushbutton is used to toggle between day and night mode

• An eccentric motor alerts the wearer by operating at different

An eccentric motor alerts the wearer by operating at different An eccentric motor alerts the wearer by operating at different An eccentric motor alerts the wearer by operating at different vibration pulse sequences vibration pulse sequences vibration pulse sequences vibration pulse sequences The pulse frequency increases as the distance between the

• bstacle and the wearer decreases

Its power is supplied directly from the battery as to not draw excessive current from the Arduino It is controlled through a NPN+transistor

• Three LEDs (green, yellow,

Three LEDs (green, yellow, Three LEDs (green, yellow, Three LEDs (green, yellow, red), an LCD, and red), an LCD, and red), an LCD, and red), an LCD, and a a a a speaker are used speaker are used speaker are used speaker are used to alert to alert to alert to alert approaching approaching approaching approaching individuals individuals individuals individuals Green: No obstacle within the outermost zone Yellow: Flashes at different frequencies based on distance between wearer and obstacle Red: Obstacle has reached innermost zone, speaker will play sound to alert incoming obstacle LCD: Displays messages based on the approximate distance between the obstacle and the wearer

• Figure 1. Front and side views of the prototype

Ultrasonic Sensors LCD with Speaker Photoresistor LEDs Eccentric Motor

• Figure 2. Device after manufacturing and assembly

• Item

Item Item Item Unit(s) Unit(s) Unit(s) Unit(s) Arduino Pro Mini 5V, 16 MHz 1 Various Resistors 7 Photoresistor 1 2N3904 NPN Transistor 1 LCD with Speaker 1 Ultrasonic Sensor 1 9V Battery 1 LEDs 3 Eccentric Motor 1 "Normally Open" Pushbutton 1

Figure 3. Circuit diagram for prototype Figure 4. Bill of materials

• Component

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Table 5. Cost estimate for all materials used in this project

• BEFORE

AFTER

Figure 6. Circuit on a breadboard to test circuit Figure 7. Circuit on a PCD to fit in case

Figure 8. Arduino code for the device

• Electromechanical parts used in the alert system can be provided

Electromechanical parts used in the alert system can be provided Electromechanical parts used in the alert system can be provided Electromechanical parts used in the alert system can be provided through a smartphone through a smartphone through a smartphone through a smartphone Complete package with a smaller footprint Bluetooth communication between the smartphone and external sensors

• Integrate smartphone GPS with audio guidance to help users

Integrate smartphone GPS with audio guidance to help users Integrate smartphone GPS with audio guidance to help users Integrate smartphone GPS with audio guidance to help users determine their current location and navigate the area determine their current location and navigate the area determine their current location and navigate the area determine their current location and navigate the area Data libraries of local stores, restaurants, and attractions User can added locations that has not been explored into the GPS database

THANK YOU VERY MUCH! THANK YOU VERY MUCH! THANK YOU VERY MUCH! THANK YOU VERY MUCH! QUESTIONS? QUESTIONS? QUESTIONS? QUESTIONS? COMMENTS? COMMENTS? COMMENTS? COMMENTS? CONCERNS? CONCERNS? CONCERNS? CONCERNS?