College - Author 1

College of Engineering

Department - Author 1

Mechanical Engineering Department

Degree Name - Author 1

BS in Mechanical Engineering

College - Author 2

College of Engineering

Department - Author 2

Mechanical Engineering Department

Degree - Author 2

BS in Mechanical Engineering

College - Author 3

College of Engineering

Department - Author 3

General Engineering Department

Degree - Author 3

BS in General Engineering

College - Author 4

College of Engineering

Department - Author 4

Industrial and Manufacturing Engineering Department

Degree - Author 4

BS in Industrial Engineering



Primary Advisor

Lily Laiho, College of Engineering, Biomedical Engineering Department


Brian Higgins is a veteran with retinitis pigmentosa who enjoys biking. The motivation for this project was to design and manufacture a refined prototype of a bike attachment to assist Brian in safely biking to and from work. The customer needs, problem definition, background, design development, final design, testing, costs, and recommendations are provided in this report.

The solution for this project, as laid out in the design development section, was to design an assembly that would detect objects in the biker’s path and relays that information to them. The design incorporated a dashboard to conceal components within, protect them from weather and keep the user’s handlebar area clear from clutter. The final design of the project was altered from the initial iteration due to additions to the sensor package. More information on these specifics can be seen in the product realization section which covers the major changes made to the design.

Upon testing, the sensor package was examined to determine if the combination of LIDAR and ultrasonic sensor met the defined design requirements. The output from the speaker cone was also tested to determine if the audio level was detectable. Three variations to the audio feedback were made based on pitch, delay, and a combination of both. All versions were demonstrated to the customer who showed a preference for the combined option.

The timeline of this project was estimated at approximately 7 months to complete. The budget was set to $1,000 but $762.89 was used to purchase and ship materials. Manufacturing items such as the 3D printed speaker cone, laser cutting the platform, and cutting holes on the dashboard were not included in the cost estimate.