With many years development and market development, Cixi Huaguang Plastic Electric Appliance Co., Ltd. has been producing the adaption market demand high tech product - automobile back-draft radar equipment. 　The back-draft anticollision radar system is one set of automobiles back-drafts security auxiliary unit according to the principle that the bat flights with high speed butwithout any obstacle collision in the nighttime, poke head in using the import ultrasonicwave to survey the automobile rear part, the front part and the obstacle distance.