Obstacle detection systems and/or vehicle collision avoidance systems consisting of computer hardware and software for the purpose of processing information, identifying obstacles and/or providing warnings of obstacles or collision avoidance measures, electronic signal transmitting and receiving equipment, laser-based signal transmitting and/or receiving equipment, global positioning modules, wireless communication equipment in the nature of radio frequency communications equipment, cellular communication equipment, satellite-based communication equipment, short range communication equipment and/or infrared wave length communication equipment, and parts and components therefore