Shared housing is a kind of design based on advertisement board. It can not only provide advertisement propaganda and economic profits for the construction investors of billboards, but also provide shelter for vagrants. This product is different from the traditional way of rescue. It allows tramps to earn more benefits for businessmen by cleaning and maintaining billboards to get their homes. The effect of reciprocity and mutual benefit is also more acceptable to businessmen.

Caoyang studio is affiliated to the industrial design department of art and design college of zhengzhou light industry university。Zhengzhou university of light industry is a university jointly established by henan provincial people's government and the state tobacco monopoly administration. It is a key university in the education and training program for outstanding engineers, a key construction backbone university in henan province, and a key construction unit for doctor degree awarding in henan province