VIU Students Develop Innovative Wearable Technology to Support Individuals with Visual Impairments

October 27, 2024

Nanaimo, British Columbia – A team of Students at vancouver Island University (VIU) is poised to revolutionize mobility for individuals with visual impairments with their innovative creation, the ‘Proximity Pal.’ This wearable device promises to provide an additional layer of awareness, acting as an ‘early warning system’ against obstacles.

The Proximity Pal: A New Approach to Assisted Navigation

The Proximity Pal is a compact, chest-worn device integrating a microprocessor, sophisticated sensors, vibration motors, and a power source. The device functions by detecting objects within a 1.5-meter radius and alerting the user through varying intensities of vibration. As an object draws closer, the vibration intensifies, offering crucial real-time feedback.

Jack Redberger, an Information Technology and Applied Systems Student, conceived the idea after being moved by a documentary featuring people navigating urban environments. He noted a critical limitation of traditional mobility aids like canes – their inability to detect overhead obstructions. “A documentary showed a visually impaired person struggling with scaffolding in New York City, as their cane could not detect the structure.” Redberger explained.”This inspired me to explore an above-waist detection solution.”

Overcoming Technical Hurdles

Developing the proximity Pal presented meaningful engineering challenges. Connecting the hardware and software components proved to be a complex process. “The most demanding aspect was getting the software and hardware to communicate effectively,” stated Jay Koidhis, a fellow student collaborating on the project.

The current iteration of the Proximity Pal employs ultrasonic sensors, but the team is actively upgrading to LIDAR technology for enhanced accuracy.They are also working to refine the power system, aiming for a smaller, lighter design with improved battery life. according to a recent report by the World Health Association, approximately 2.2 billion people globally experience some form of visual impairment, highlighting the potential impact of such a device.

Collaboration and Recognition

The project has garnered attention from the Canadian National Institute for the Blind (CNIB), which will conduct thorough testing and provide valuable feedback. VIU’s Information Technology and Applied Systems program is being credited with providing the necessary resources and mentorship to bring this invention to life.

The innovation has been formally recognized through the lloyd milburn Innovation Award, presented jointly by VIU and the university of Victoria. This prestigious award provides crucial funding for the development of a second prototype, and also mentorship opportunities through the UVic Innovation Centre. Redberger expressed his gratitude, acknowledging that the award validated the potential of their idea to positively impact lives.

feature	Current Version	Next Version
Sensor Type	Ultrasonic	LIDAR
Size/Weight	Prototype phase	Smaller & Lighter
Battery Life	Developing	Extended

both Redberger and Koidhis plan to continue their careers in the technology sector after graduation.Redberger is looking towards a role in systems governance, while Koidhis intends to return to the IT field, potentially within the public sector.

The Growing Need for Assistive Technology

The demand for assistive technology is steadily rising, driven by an aging global population and increasing awareness of accessibility needs. Innovations like the Proximity Pal underscore the importance of inclusive design and the potential of technology to empower individuals with disabilities. According to a report by Disability Rights Education & Defense Fund, the market for assistive technology is projected to reach $30 billion by 2027.

Frequently Asked Questions About the Proximity pal

• What is the Proximity Pal? The Proximity Pal is a wearable device that alerts visually impaired individuals to nearby obstacles through vibrations.
• How does the Proximity Pal work? It uses sensors to detect objects within a 1.5-meter radius and increases vibration intensity as the object gets closer.
• What inspired the development of the Proximity pal? The creator was inspired by a documentary highlighting the challenges visually impaired individuals face when navigating urban environments.
• What is LIDAR and how will it improve the device? LIDAR technology offers more accurate distance readings than ultrasonic sensors, enhancing the Proximity pal’s obstacle detection capabilities.
• Is the Proximity Pal available to the public? Currently, its a prototype undergoing testing with the Canadian National institute for the Blind.
• What kind of support did the students receive? The students received support from the VIU’s ITAS program, instructors, and the Lloyd Milburn Innovation Award.
• What are the future plans for the device? The team is focused on refining the design,improving battery life,and preparing the device for potential market release.

What challenges do you think are most pressing for people with visual impairments today? Share your thoughts in the comments below, and let’s continue the conversation!

What specific engineering and computer science principles were integrated to develop the haptic feedback system in SightAssist?

The Genesis of “SightAssist” – A Collaborative Project

Vancouver Island university (VIU) engineering and computer science students have unveiled a groundbreaking wearable device, dubbed “SightAssist,” designed to considerably enhance the independence and quality of life for individuals experiencing visual impairments. this project, a culmination of two years of intensive research and development, represents a major leap forward in assistive technology. The core team, led by Professor Emily Carter in the Department of Engineering, focused on creating a practical, affordable, and user-amiable solution.

How SightAssist Works: Core Technologies & Features

SightAssist isn’t just one technology; it’s a carefully integrated system.The device, resembling a sleek pair of smart glasses, utilizes several key components:

* Miniature Depth Camera: A small, low-power depth camera captures the surrounding environment, creating a 3D map. This is crucial for obstacle detection and navigation.

* Haptic Feedback System: instead of relying solely on audio cues (which can be disruptive in certain environments), SightAssist employs a elegant haptic feedback system. Vibrations of varying intensity and location on the user’s wrist or shoulder subtly indicate the proximity and direction of obstacles.

* Bone Conduction Audio: For essential auditory facts – like street names read from signs – the device utilizes bone conduction technology. This allows users to hear information without blocking ambient sounds, maintaining situational awareness.

* AI-Powered Object Recognition: A lightweight, onboard AI processor identifies common objects (chairs, doors, traffic lights, pedestrians) and relays this information to the user via haptic or audio feedback. The system is continuously learning and improving through machine learning algorithms.

* GPS Integration & Navigation: Integrated GPS provides location data, enabling turn-by-turn navigation assistance. The system can be programmed with frequently visited locations for simplified routing.

Addressing Key Challenges in Assistive tech

Existing assistive technologies often fall short in several areas.SightAssist directly addresses these limitations:

* cost: Many advanced assistive devices are prohibitively expensive. The VIU team prioritized affordability, utilizing readily available components and open-source software where possible. Estimated production cost per unit is currently under $500 CAD.

* Usability: Complex interfaces and steep learning curves can hinder adoption. SightAssist is designed for intuitive use, with minimal buttons and a focus on natural, subtle feedback.

* Environmental Adaptability: Customary white canes and guide dogs are effective but can be limited in certain environments (crowded spaces, uneven terrain). SightAssist’s sensor suite and AI algorithms are designed to adapt to a wider range of conditions.

* Discreetness: some individuals with visual impairments may feel self-conscious using traditional assistive devices. The sleek, glasses-like design of SightAssist aims to minimize this concern.

Benefits of Wearable Assistive technology for the Visually Impaired

The potential benefits of SightAssist, and wearable assistive technology in general, are considerable:

* Increased Independence: Enhanced navigation and obstacle detection empower users to move around more confidently and independently.

* Improved Safety: Real-time obstacle alerts reduce the risk of accidents and injuries.

* Enhanced Social Interaction: Greater confidence and independence can lead to increased social engagement.

* Greater Employment Opportunities: Improved accessibility can open up new employment possibilities.

* Reduced Cognitive Load: By automating tasks like obstacle avoidance, the device frees up cognitive resources for other activities.

Real-World Testing & User Feedback

The VIU team conducted extensive user testing with individuals representing a range of visual impairments, from low vision to complete blindness. Feedback was overwhelmingly positive. Participants reported a important increase in their confidence and ability to navigate unfamiliar environments.

One participant, Mr. David Lee, a retired teacher with macular degeneration, stated, “SightAssist has given me a new lease on life. I can now walk to the local coffee shop on my own, something I haven’t been able to do in years.”

Future Development & Scalability

The VIU team is currently working on several enhancements:

* Improved AI Algorithms: Refining the object recognition algorithms to identify a wider range of objects and improve accuracy.

* Integration with Smart City Infrastructure: Exploring the possibility of integrating sightassist with smart city data (e.g., real-time traffic information, public transportation schedules).

* Customizable Feedback Profiles: Allowing users to personalize the haptic and audio feedback to their individual preferences.

* Miniaturization: Further reducing the size and weight of the device.

The university is actively seeking partnerships with industry and non-profit organizations to scale up production and make SightAssist available to a wider audience. They are also exploring licensing opportunities for the technology. The project has garnered attention from organizations focused on accessibility and inclusive design, including the CNIB (Canadian National Institute for the Blind).

Keywords Used:

* Visual Impairments

* Assistive Technology

* Wearable Technology

* Smart Glasses

* Haptic Feedback

* AI-Powered

* Object Recognition

* Navigation