RV, also known as "home on wheels", has two major functions of "house" and "car", but its attribute is still a car. It is a kind of mobile car with the necessary basic facilities for home. The saloon car is a kind of fashionable facilities imported from abroad. The home facilities on the car include: bedding, stove, refrigerator, cabinet, sofa, dining table and chair, toilet facilities, air conditioning, TV, stereo and other furniture and electrical appliances. It can be divided into driving area, living area, bedroom area, sanitary area, kitchen area and so on. The saloon car is a combination of "clothing, food, housing and transportation, realize" travel in life, travel in life "fashion products.