Bluetooth layout and location method for underground parking lots

The invention provides a Bluetooth layout and location method for underground parking lots. Firstly, Bluetooth base stations are arranged at the height of about three meters right above the road at the key nodes of an underground parking lot, such as intersections and corners, and Bluetooth base stations are arranged at regular intervals with the key nodes as the center. After the Bluetooth of a handheld terminal of a user is opened, the handheld terminal is connected with the Bluetooth base stations and obtains the entrance of the indoor micro-map. After the user accesses the indoor micro-map, the handheld terminal of the user periodically receives and parses the information data of the Bluetooth base stations. After the distance between each base station and the handheld terminal of theuser and the unique identification mark minor numbers of the base stations obtained by parsing are matched with the indoor map description file, the location of the user can be determined by using a section peak location algo