AGV car is a kind of unmanned automatic guidance car, AGV car system involves mechanical, electronic, optical, computer and other fields, widely used in automated modern logistics system. Automatic guided AGV car is a kind of automated material handling equipment, it has a high degree of automation, application of flexible, safe and reliable, unmanned operation, simple construction and easy maintenance, and many other advantages, is widely applied in factory automation, intelligent, warehousing logistics, is the key equipment of the modern logistics system, to increase the degree of production automation and improve the production efficiency has important significance.