The proposed system is a monitoring display system which is placed on the vehicle’s dashboard to monitor the obstacle’s presence on the blind spot while roaming and parking. Obstacle avoidance sensors placed on the blind spots of the vehicles and its analog outputs are fed to the Arduino Uno microcontroller board. After processed that the obstacle detection is viewed by one LCD by indication.

This system consists of one Arduino microcontroller board, four obstacle avoidance sensor and one 16x2 character liquid crystal display. Obstacle sensors outputs are fed to Arduino microcontroller’s analog channel lines. LCD is used to indicate the visual representation of the obstacles. LCD receives the command data and user data are sent by Arduino board through digital lines.

EXPANDED TECHNICAL DETAILS

Multi-Modal Collision Warning

This industrial-style monitoring system provides both visual and acoustic feedback to prevent vehicle or drone collisions.

• Triangular Sonar Mapping: Uses two or more HC-SR04 ultrasonic sensors to create a wider "Detection Field." The Arduino captures the distance data and categorizes it into "Safe," "Alert," and "Danger" zones.
• Variable Frequency Pulse Alert: As an object gets closer, the Arduino increases the frequency of a piezo buzzer and the flash-rate of a Red LED, providing intuitive spatial awareness to the operator.

Accuracy

• Signal Averaging Matrix: The firmware uses a 5-sample "Running Average" to filter out occasional erratic pings caused by ultrasonic reflections from irregular surfaces, ensuring a stable and reliable alarm.