Remote Device for Visually Impaired Individuals¶
Introduction¶
Visually impaired individuals often face challenges when interacting with digital technology, such as smartphones and tablets. While there are assistive technologies available, such as screen readers and braille displays, these can be expensive and may not be suitable for all users (MaxiAids | Vision | Low Vision Products | Low Vision Devices | Blind Products, n.d.). A more affordable and portable solution could be a remote device that allows visually impaired individuals to easily control an app on their smartphone. In this research, we explore the design and features of such a device, as well as the most convenient ways to carry or wear it. We also consider key properties for the device’s design, including size and portability, durability, and ease of use. Finally, we look at alternatives to a small LED for indicating battery level and charging status.
Devices that are already available¶
Braille displays¶
A Braille display is a device that can connect to a smartphone via Bluetooth, and display Braille characters that can be read by touch. It is a tactile device that allows visually impaired individuals to read text on their smartphone.
Smart glasses¶
Smart glasses are glasses that have a small screen built into one lens which can display text or images in front of the wearer’s eye. They are designed to make it easier for visually impaired individuals to read text and navigate their surroundings.
Audio devices¶
Audio-enabled devices are specifically designed for the visually impaired. They have a built-in speaker and can read out text on the screen or any other information. They can also be used as a standalone devices, they don’t need a smartphone to function.
Screen readers¶
Screen readers are software applications that can read text on the screen aloud, allowing visually impaired individuals to interact with their smartphones more easily. They are built-in software, in most of the cases, of the smartphones and can be activated by the user.
Design and Features¶
A potential design for the remote device could be a small, rectangular box with four buttons arranged in a circular pattern on one face. The device could be about the size of a deck of cards and could be easily carried in a pocket or bag. The buttons could be raised and have a distinct texture to allow for easy identification by touch. The device could also have a small speaker or headphone jack to provide audio feedback, as well as a vibration motor to provide haptic feedback when the buttons are pressed (Dickson & Rashid, n.d.).
In addition to the buttons and feedback mechanisms, the device could also include additional features to further assist visually impaired users. For example, it could have a built-in microphone for voice commands or a Bluetooth connection to allow the user to control their smartphone remotely. It could also have a small display screen, such as an e-ink display, to show simple text or graphics to the user.
Convenient Ways to Carry or Wear the Device¶
The device could be attached to a cane or dog leash using a clip or strap, allowing the user to keep their hands free while still being able to easily access and control the device (LibGuides: Blind/Visual Impairment: Home, n.d.). This would also help the user keep track of the device, as it would be physically connected to their cane or leash. Alternatively, the device could be worn on the wrist like a watch, allowing for easy access and control without requiring the user to hold onto it (Top 10 Products for People Who Are Blind, 2022). The device could also be worn around the neck like a necklace, using a cord or chain to hold it in place. This would keep the device within easy reach and allow the user to control it simply by reaching up to press the buttons.
If the user does not use a cane or leash, or prefers not to attach the device to these items, it could also be designed to be carried in a pocket or bag. This could be particularly useful for users who are already carrying other items and don’t want to add additional weight or bulk (LibGuides: Blind/Visual Impairment: Home, n.d.). It could also be beneficial for users who need to access the device quickly and don’t want to have to fumble with clips or straps.
Key Properties for Device Design¶
When choosing a device that is intended for use by visually impaired individuals, it is important to consider its durability. This means looking at the materials used in its construction, as well as the overall build quality. Water resistance and drop resistance may also be important factors, particularly if the device will be used in wet or rugged environments (Dickson & Rashid, n.d.). It may be worth looking for a device with a ruggedized design or reinforced construction to increase its durability. Additionally, it is a good idea to check the manufacturer’s warranty to see what kind of protection it offers against defects or other issues that may arise over time. Overall, the goal is to find a device that is built to last and can withstand the wear and tear of everyday use.
End users¶
Taking different end users into account is important because it ensures that the device or technology is accessible and usable for a wide range of people. Different users have different needs and abilities, and designing a device that is inclusive of these differences ensures that it will be useful and beneficial for a larger population.
Service dog¶
These users need a device that is small and lightweight, and not impede the movement of the user or their service dog. The device should not produce loud or disruptive sounds, as this could startle or distract the service dog (LibGuides: Blind/Visual Impairment: Home, n.d.). The device should be easy for the user to access and control with minimal disruption to the service dog’s training and performance.
Cane¶
These users need a device that is easy to hold and control with one hand, as they may have difficulty using both hands. The device should be lightweight and not too cumbersome, as the user may have to carry it around with them for extended periods of time. The device should be easy to operate and understand, as the user may have difficulty with complex controls or instructions (LibGuides: Blind/Visual Impairment: Home, n.d.).
Conclusion¶
The device should have the following properties to make it accessible for both service dog users and cane users:
- Small and lightweight, easy to carry around and not impede the movement of the user
- Large, easy-to-press buttons that can be controlled with one hand
- Easy to operate and understand, with simple controls and instructions
- Durable and able to withstand daily wear and tear
- Compatible with different assistive technologies such as screen readers and braille displays
- Low noise or soundless operation to not distract or interfere with the service dog’s ability to perform its duties
- Communication capability with the “Stephear” app using Bluetooth or similar technology, allowing the user to control the app without having to take out their phone.
Sources¶
Dickson, J., & Rashid, A. (n.d.). Top 5 Devices That Can Help Legally Blind Live Independently. IrisVision. https://irisvision.com/devices-that-can-help-legally-blind-live-independently/ LibGuides: Blind/Visual Impairment: Home. (n.d.). https://guides.library.illinois.edu/c.php?g=526852 MaxiAids | Vision | Low Vision Products | Low Vision Devices | Blind Products. (n.d.). https://www.maxiaids.com/blind-and-low-vision-store Top 10 Products for People who are Blind. (2022, November 8). New England Low Vision. https://nelowvision.com/top-10-products-for-people-who-are-blind-2020/
Designing the remote¶
To comply to the requirements, a small bluetooth remote that was present was used as a benchmark.
It consists of 7 buttons which are printed on a PCB. It can be paired with other devices via bluetooth. The image below displays a test to use small buttons provided by the remote we had for reference. The available resources didn’t include small buttons that made a small remote possible. After this test it was concluded that the better option would be to get seperate small buttons to attach to a prototyping board.