Title: ARM Based Collision Detection and Avoidance Robotic Vehicle
Idea In Short:
This robotic vehicle uses ultrasonic sensors to detect obstacles in its path and automatically halts its movement to prevent collisions, displaying its status on an LCD.
System Description:
The project tackles the critical need for safety and autonomy in robotic locomotion, specifically addressing accident prevention in vehicles and autonomous rovers. The system operates on an LPC1768 Cortex-M3 (ARM) microcontroller platform. It utilizes a front-mounted ultrasonic distance sensor to continuously measure the range to any object directly ahead. If the measured distance falls below a pre-programmed critical threshold, the microcontroller interprets this as an imminent collision and immediately issues a command to cut power to the drive motors, effectively halting the vehicle. The real-time distance and vehicle status (e.g., 'Normal' or 'STOP') are shown on an attached LCD panel. This demonstrates a reliable, reactive collision avoidance mechanism for wheeled systems.
System Details:
Hardware Inventory:
ARM Cortex LPC1768 (Microcontroller Board)
Robotic Chassis
DC Motors
Motor Driver IC
Ultrasonic Distance Sensor
LCD Display
Regulatory Circuitry
PCB Board
Resistors
Capacitors
Transistors
Cables and Connectors
Switch
IC Sockets
Software Inventory:
Operating System: None
Programming Language: Embedded C
Working Blocks (System Process Flow):
Power Supply Unit: Regulates the incoming voltage to provide stable operating power for the logic circuits and motor drivers.
Ultrasonic Distance Sensor (Input): Emits high-frequency sound pulses and measures the reflection time to calculate the precise distance to objects ahead. This is the primary sensing mechanism.
ARM Cortex LPC1768 Microcontroller (Processing Unit): Serves as the central brain. It receives real-time distance data from the sensor and executes logic to compare this value against a defined collision threshold.
Motor Driver IC: Receives low-power control signals from the ARM controller and delivers the high-current output required to drive the locomotion motors.
DC Motors (Locomotion/Actuation): Power the wheels for the robot to move, responding to the motor driver's commands to either drive or stop.
LCD Display (Output): Provides visual status feedback, showing current distance measurements and system operational mode (e.g., normal or halted).
System Application:
Prototype development for advanced driver assistance systems (ADAS) in consumer vehicles.
Autonomous warehouse rovers or industrial transport robots to safely navigate crowded environments.
Remote inspection bots operating in unknown or challenging terrain with automatic obstacle protection.
For The Year 2026 Published Articles List click here
…till the next post, bye-bye & take care
