Guo Li

TL;DR: In this article, a building access control method applied to a cloud server is described, which comprises the following steps: acquiring identification information of a terminal when receiving an access request of the terminal, matching the identification information with a pre-stored user identity information information library, generating a random password if a user corresponding to the terminal is matched in the pre-STI library, and sending the random password to the user, and judging whether the password input on the basis of the building access access control system is received in preset time or not.