Table of Contents
Click the following link to download the 1 Page Summary of the Intelligent Mobility Cane: 1 Page Summary
- The idea of a smart cane to aid the visually impaired or blind in navigating around objects they can’t normally detect through conventional methods, i.e. low overhangs, has been around for a while. However the current canes on the market weigh too much, are too expensive, and/or are not practical. In order to really aid the visually impaired/blind, a cheap and more practical version of a smart cane is needed.
- The goal of this project is to develop an inexpensive and practical smart cane that provides haptic feedback to inform the user of obstacles, overhangs, and walls in their path.
- Identify the best sensors to identify objects in front of user.
- Identify the best implementation of haptic feedback.
- Design a cane that can be stored easily.
- Develop an initial prototype.
- A functioning prototype that meets the customer's needs.
- Documentation of schematics, drawings, code, and test data.
Expected Project Benefits
- To provide ABVI with a practical smart cane.
- To create a prototype that can be manufactured by blind/visually impaired people.
- To aid the blind/visually impaired with navigating through their daily lives.
Core Team Members
- Allan Andranikian
- Marisa Ashour
- Dan Chianucci
- Andrew Greeley
- Justine Nichols
- Benjamin Stewart
Assumptions & Constraints
- Cane must be easily assembled by a blind/visual impaired person.
- Haptic feedback must be used to inform the user of objects in their path.
- The cane must be lightweight, and weigh no more than the standard mobility cane plus one pound.
- The prototype should be designed for use by the average American male (height of 5' 9").
- The prototype will be designed with eventual manufacturing by the blind and visually impaired in mind.
- The materials cost for the final prototype will be no more than $125.
Issues & Risks
- The lead time of a component is 10 weeks.
- Some of the constraints may not be lenient enough to allow for extensive freedom in the design process. (for example, the weight constraint)
- None of the team members are familiar with the everyday use of mobility canes for the visually impaired.
Project Goals and Key Deliverables
One Intelligent Mobility Cane
- Functional for the average adult male.
- Can sense obstacles in front of the user.
- Can sense walls in front of the user.
- Can sense overhangs in front of the user.
- Provides haptic feedback to the user that alerts them to the object to be avoided.
Documentation necessary for eventual
manufacturing of the Intelligent Mobility Cane
- Technical Drawings
- Bill of Materials
- Tooling & Fixtures
- Process Sheets
- Test Plans
Customer RequirementsTo download a PDF of our Customer Requirements, click on the following link: Intelligent Mobility Cane Customer Requirements
Engineering RequirementsTo download a PDF of our Engineering Requirements, click on the following link: Intelligent Mobility Cane Engineering Requirements
Note that in the PDF, importance values directly correlate to the value assigned to the Customer Requirement that is the source of the Engineering Requirement.
House of Quality
Click the following link to view P15044's House of Quality: P15044 House of Quality
- Costs less than $125.
- The detection and feedback system should weigh no more than the standard smart phone.
- Prototype will be useable by a man of average height (5'9").
- Is safe to use.
- Cane collapses to fit a 20x20 cm envelope.
- Is easy to assemble.
- Provides haptic (vibrational) feedback.
|Object||Anything in front of the user, including obstacles, overhangs, and walls.|
|Obstacle||Any object in front of the user starting 0.5" above the ground and reaching a maximum height of the user's waist (approximately 31.7" above the ground for the average American male).|
|Overhang||Any object in front of the user starting at waist height (approximately 31.7" above the ground for the average American male).|
|Wall||Any object in front of the user starting anywhere between 0.5" above the ground and waist height that continues above the user's waist.|
|Drop off||Any differentiation between the ground the user is currently standing on and the ground at maximum range that is equal to or greater than average curb height (6"-8").|