28-05-2014, 10:44 AM
Automotive Collision Avoidance System Using Ultrasonic Sensor
Automotive Collision Avoidance.pptx (Size: 1.39 MB / Downloads: 11)
INTRODUCTION
The Automotive collision avoidance system (ACAS) is a system in which a sensor is placed inside a car, which warns its driver of any danger that may lie ahead on the road.
The system uses sensors that send and receive signals from things like other cars; obstacles in the road.
For an example of how the system works is when a driver is about to change lanes, and there is a car in his blind spot. The sensors will detect that car and inform the driver before he starts turning, preventing him from potentially getting into a serious accident.
ACAS
Automotive Collision avoidance systems (ACAS) are especially useful in bad weather conditions. The sensors in the car would be capable of detecting the poor conditions and would inform the driver on how to drive in them. For example, because fog affects visibility, the sensors would recognize this and alert the driver of any dangers that lie ahead, like a windy turn or another car, giving the driver enough time to slow down, allowing him to escape from what could have been a bad accident.
WORKING
This collision avoidance system will be a combination of software and hardware that works in unison to prevent collisions.
First the ultrasonic sensor will detect if there are any objects in the way of the vehicle.
The ultrasonic sensor will send the data from the feedback echo to the microcontroller. After the data is sent, the microcontroller will calculate the distance of the vehicle to the object or continue to receive data from the ultrasonic sensor if there is no object in front of the vehicle.
If an object is considered to be at an unsafe distance, a LED light will blink as a visual warning that danger is ahead.
FUTURE SCOPE
The Automotive Collision Avoidance Systems (ACAS) Development Program was formed to further investigate collision warning technologies.
The main objective of the program, to provide a focused approach to accelerate the commercial availability of a portfolio of select high-value key fundamental collision warning countermeasure technologies/systems, was largely accomplished.