Blind Person's Assistant
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Project developed by Aliaksei_Petsiuk
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Abstract
The given project is a part of Open Source Appropriate Technologies assignment, and it is designed to support visually-impaired people.
As per World Health Organization, there are about 300 million visually-impaired people in the world, 40 millions of them are totally blind. Scientists and engineers are working on systems which would be able to improve the quality of lives of people with the lost vision. A number of modern projects and achievements in this field has been listed in the Reference section.
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Prototyping stage
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Printed parts and soldered electronic components
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Completed assembly
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Testing procedures
Bill of Materials
The full list of materials used for the project is provided in the table below.
Total cost is $ 5.00.
- 3D source files could be downloaded from here:
- Code for arduino is available at:
- For arduino programming you may need the free open source Arduino IDE which could be downloaded from: https://www.arduino.cc/en/Main/Software
Tools needed for fabrication of the OSAT
- MOST Delta RepRap or similar RepRap 3-D printer
- Plastic Filament
- Soldering Iron
- Solder
- Screwdriver
- Hexagon Key
- Breadboard
- Paper Knife
- Tweezers
- Wires Stripper
Skills and Knowledge Necessary to Make the OSAT
All skills you need are at the basic level:
- 3D printing
- 3D Design
- Electronics
- Programming
Technical Specifications and Assembly Instructions
- Provide directions for print/assembly - be detailed enough in your “how to” to ensure that someone could construct the device from your description. Consider the elegance of IKEA like instructions.
- Include print time estimate
- Include assembly time estimate
- Including drawings or pictures of the device at stage of assembly at minimum. (http://www.appropedia.org/Special:Upload)
Common Problems and Solutions
- Solder all the wires with the components being in the place of the approximate final position. It may be complicated to bend soldered wires.
Cost savings
- If your solution is not a low cost one then it is not really appropriate.
- Estimate your costs
- Find a commercial equivalent
- Calculate $ savings and % savings
Benefited Internet Communities
- Name and add links to at least 5 using single brackets around [url name]
References
- ↑ Wafa Elmannai and Khaled Elleithy. Sensor-Based Assistive Devices for Visually-Impaired People: Current Status, Challenges, and Future Directions. US National Library of Medicine, National Institutes of Health, Sensors (Basel). 2017 March 2017. Available: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5375851/
- ↑ Antonio Pereira, et al. Blind Guide: An Ultrasound Sensor-based Body Area Network for Guiding Blind People. Procedia Computer Science, v. 67, 2015, pp. 403-408. Available: https://www.sciencedirect.com/science/article/pii/S1877050915031312
- ↑ Rohit Agarwal, et al. Low cost ultrasonic smart glasses for blind. 2017 8th IEEE Annual Information Technology, Electronics and Mobile Communication Conference (IEMCON). Available: https://ieeexplore.ieee.org/document/8117194