Our prototype is built around a Raspberry Pi 4, functioning as the central control unit for a smart rearview system. It integrates multiple sensors and output components to enhance driver awareness and safety.
Key Components & Functions:
Raspberry Pi 4:
Acts as the core processor, running Python scripts to manage sensor data, display output, and sound alerts.
Raspberry Pi Camera:
Mounted at the rear of the vehicle, it streams live video to an HDMI screen, providing clear rear visibility for the driver.
DHT11 Temperature Sensor:
Monitors the external environment and displays real-time temperature readings on the screen, warning the driver about cold or potentially icy conditions.
HC-SR04 Ultrasonic Sensor:
Measures the distance between the vehicle and any obstacle behind it. If an object comes within a set threshold, it triggers a proximity alert.
Buzzer:
Connected to the Pi, it emits a beeping sound when the ultrasonic sensor detects that an object is too close, helping prevent collisions while reversing or parking.
HDMI Screen:
Displays the live camera feed, temperature data, and visual indicators for obstacle detection, creating a complete smart rearview interface.
This prototype demonstrates how multiple low-cost components can work together to create an intelligent, real-time driver assistance system. It offers visual and audio feedback to improve safety and awareness, making it a practical and affordable solution for everyday vehicles.