Hybrid Radar Detection System With Sensor Fusion and RTC for Accurate Object Detection

Abstract

Detecting and tracking object has become a critical aspect in modern automation, security setup, and robotic technologies, as these systems modifies efficiency and safety, where fast and accurate detection is critical. we present a hybrid radar detection system that combines multiple sensing technologies to results were accurate detection. It detected object within a 50 cm range. The system setup an HB100 Doppler radar module for motion and speed detection with an HC-SR04 ultrasonic sensor for accurate distance measurement. A micro-servo motor sweep 180° scanning, while an ESP32 microcontroller manages sensor data, real-time computation, visualization, and alert generation. An OLED display provides a live sweep showing the object’s distance, speed, and angular position, and a camera module provides video feed. This study shows research contributions from the past decade to identify advancement in hybrid radar-based detection systems and their application ultrasonic radar, Doppler sensor, and IoT-enabled alert models. To improve accuracy, the system includes local alerts through LEDs, a buzzer, and a speaker’s, along with remote notifications via an SMS module. An RTC module ensures accurate time stamping of events, and an actuation mechanism activates when a risk is detected. The prototype shows stable performance, with correct object tracking and reduced false alarms due to the used of several sensor calculating distance, speed, and angle information, this model enhances situational awareness.