Applications and implications
My project implicates:
As a biomedical engineering student, my project is primarily focused on supporting visually impaired individuals to lead more fulfilling lives. It involves various aspects such as 2D and 3D design, additive and subtractive fabrication processes, electronics design and production, embedded microcontroller interfacing and programming, and system integration and packaging. By integrating these elements, I aim to develop innovative solutions that enhance accessibility and improve the quality of life for those with visual impairments.
What will it do?
As I have mentioned previously, my project primarily involves two parts. The first part is a GPS module connected to an interface for the primary caregiver. During an interview, a caregiver expressed concern about her sister taking the bus to work. This module ensures that once she arrives at her destination, she can feel secure. The second part is a laser sensor that detects obstacles and vibrates if they are within 10 centimeters.
Who has done what beforehand?
Additionally, I was inspired by a TikTok video that demonstrated using an ultrasonic sensor to trigger a buzzer when detecting an obstacle. However, as you can see, the setup in the video involves exposed wires and lacks sophistication. I aim to refine this concept, incorporating a more polished design and integrating it seamlessly with the GPS functionality to provide a comprehensive solution for visually impaired individuals.
TikTok video : Ultrasonic sensor for a caneWhat will you design?
I will design everything from scratch, including adjustable parts for any cane in SolidWorks, as well as the circuit boards, code, interface, and essentially every component of the project. My goal is to create a robust and user-friendly device that significantly improves the independence and safety of visually impaired individuals.
What materials and components will be used?, where will they come from? and how much will they cost?
| Qty | Description | Price | Link/where will they come from |
|---|---|---|---|
| 1 | XIAO RP2040 | $9 USD | Ibero Puebla |
| 1 | XIAO ESP32-C3 | $9 USD | Ibero Puebla |
| 2 | GY-VL53L0XV2 | $7.55 USD | Distance sensor |
| 1 | Ublox Neo-6m Gps Module | $7 USD | GPS sensor |
| 1 | Vibrator motor | $12 USD (package of 10) | Amazon link |
Note: also the pins, smd components and the cables.
What parts and systems will be made?
I will design everything from scratch. The structures where the modules will be housed will be designed in SolidWorks. I will create the circuit boards using an end mill, and the enclosure that will contain all the components will be made from MDF using a laser cutter. By taking this comprehensive approach, I aim to develop a robust and user-friendly device that significantly improves the independence and safety of visually impaired individuals.
What processes will be used?
The processes I will use include 2D and 3D design, additive and subtractive fabrication processes, electronics design and production, embedded microcontroller interfacing and programming, and system integration and packaging. The structures for the modules will be designed in SolidWorks, the circuit boards will be created using an end mill, and the enclosure for all the components will be made from MDF using a laser cutter. By leveraging these processes, I will develop a robust and user-friendly device that significantly enhances the independence and safety of visually impaired individuals.
What questions need to be answered?
Note: I answered now that I finished the project.
- What is the most efficient way to design a laser sensor system that can reliably detect obstacles and provide immediate feedback?
- How can we design adjustable, durable, and user-friendly components using SolidWorks that can be easily attached to any cane?
- How can this project improve the overall independence and quality of life for visually impaired individuals?
Designing an efficient laser sensor system to reliably detect obstacles and provide immediate feedback involves several key steps. The system should utilize a high-precision laser sensor, such as a Time-of-Flight (ToF) sensor, known for its accuracy and quick response time. The sensor must be integrated with a powerful microcontroller capable of processing data in real-time to ensure immediate feedback. To achieve reliability, the system should be designed to function effectively under various environmental conditions, including different lighting and weather scenarios
When designing adjustable, durable, and user-friendly components using SolidWorks for attachment to any cane, several factors must be considered. The design process should start with creating a modular attachment system that can fit various cane diameters and shapes. This could be achieved through adjustable clamps or flexible materials that secure tightly but can be easily released. Durability can be enhanced by choosing high-quality materials like reinforced plastics or lightweight metals, which are also resistant to wear and tear. To ensure user-friendliness, the design should incorporate ergonomic principles, making the components easy to handle and attach without requiring special tools.
This project holds significant potential to improve the overall independence and quality of life for visually impaired individuals. By integrating a reliable laser sensor system with a standard mobility aid like a cane, users can receive real-time feedback about their surroundings, helping them navigate more safely and confidently. This added layer of spatial awareness reduces the likelihood of accidents and increases the user's ability to explore and engage with their environment autonomously. Moreover, the customizable and durable design of the cane attachments ensures that the device can be tailored to individual needs, enhancing comfort and usability. By empowering visually impaired individuals with advanced navigational tools, this project promotes greater independence, enabling them to carry out daily activities with increased ease and security, thus significantly enhancing their overall quality of life.
How will it be evaluated?
The idea is to evaluate the project with the individual I interviewed, considering her availability since she works a lot. If she is not available, I will test it with my family by covering our eyes and assessing how useful the device could be in practice. This approach will help determine the effectiveness and usability of the solution in real-life scenarios for visually impaired individuals.