A student-designed automotive collision avoidance system

A receiver-transmitter system at 99 MHz is energized by a shock activated switch to provide warnings of collision, emergency vehicles, or other road hazards. The system was designed and constructed as part of a senior design sequence. It was intended to be simple and reliable, and, when translated into modern integrated circuit technology, it can be installed at a low cost per vehicle. It provides advantages over radar braking in that it is practically feasible and much less expensive. It has advantages over other approaches in that it can be used in the daytime or at night and in any weather.