Construction personnel positioning and tracking algorithm for NLOS construction site

The invention discloses an NLOS construction site-oriented constructor positioning and tracking algorithm, and the algorithm employs a positioning system which comprises a label worn by a constructor, at least three base stations which fix known positions, and a server which is used for receiving distance measurement information and calculating the position information of the label. The switch is used for carrying out network data interaction between the base station and the server, and the base station is installed on a construction site of a construction site; the method comprises the following steps: obtaining distance measurement information according to timestamp information sent and received by a base station through an obtained ultra-wideband signal, sending the distance measurement information obtained by a plurality of base stations to a server through a switch, and optimizing an initial value required by Taylor algorithm operation by using a weighted least square algorithm according to the distance