Embedded Files
Goal:
Create a bike helmet with sensor measurements and a rear view camera. The helmet should provide an auditory output when a vehicle is near. Reduce cyclist death and injury rates and improve user awareness.
Materials:
• Raspberry Pi W • Buzzer
• Jumper Cables • 3.5” LCD
• Ultrasonic Sensor • Battery Pack
• Sony IMX219 CSI Camera
Design:
A mount to hold a display in front of a user’s eyes and a buzzer mounted on the left side near the user’s ears. A camera mounted next to the Raspberry Pi
Testing:
Test angle of camera and adjust for optimum visibility. With the help of a stationary car, test the ultrasonic sensor and its alarm distance. Tweak if necessary.
Graphs
Note how accident rates go up during 6PM. Due to it being darker outside, visibility decreases. The addition of a night vision camera helps to combat this.
Cyclist injury statistics throughout a 24-hour period.
Relevance
Every year, thousands of people die while hundreds of thousands are injured by accidents involving motor vehicles and cyclists. Over a 17-year period, the medical costs of bicycle injuries to adults in the United States, both fatal and non-fatal, amounted to $237 billion.
Errors
The original design involved using a holographis-style display to create a semi-transparent overlay infront of the wearer's eyes. This idea was scrapped due to it being to complex and too bulky.
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