Introduction - cars and vehicles have been integrated into society as one of the most efficient, easiest, accessible
means of transportation available. But while it is a convenient and common means of transportation, it is also an incredibly dangerous
mode of transport. Thousands of people die in automobile accidents each year, whether it is a collision with another vehicle or a
A 1996 Firebird after crashing into a telephone pole.
A method of early collision detection and avoidance could curb several of the accidents that may be related to factors such as loss
of control, careless driving, sleepy/drunk drivers, and not paying attention to the road. Although it is not a standard safety feature
in any car on the current market, the use of sensory equipment to detect potentially dangerous objects a certain distance away and
either slow the car down or steer to a safer path has not been released.
Our project was to take a remote controlled Humvee vehicle and add an ultrasonic sensor to it.
Simulating a possible advancement in safety/security systems in cars and automobiles, the R/C Humvee and Sensor would be able to operate
normally until the sensor detects a possible hazard. In our case, the sensor would face forwards until the car came within ~4 feet of an object,
at which time user control would be disconnected from the motor, the sensor would rotate to find the safest path, if any (or back up if there
was none), and steer towards that path.
The "smart" logic of the car would be controlled through an Atmel Mega163 programmable chip, which we coded for the project. The recieved
commands from the "driver" (the remote control) would pass through the Mega163, and the Mega163 would determine the car's best course of
action based on the results of pulses from the sensor. The Mega163 would then drive the car motors as well as recieve information on object
distance from the sensor in order to avoid any collisions. The design, implementation, analysis, schematics, and code can be found through
the rest of this web page.