Method and system for determining audience members by using Bluetooth

Procedure for data acquisition via a radio receiver using Bluetooth technology, carried out by a team (1) information manager, comprising first acquisition means (11) equipped with a Bluetooth radio module data (3), said receiver for r comprising eceiving data at least one terminal (21, 22) wireless Bluetooth in a given area of said cell (C) receiving, said method comprising a prior step of statement said terminal module Bluetooth radio (3) and - in the cell (C), a stage of activation by a user of a user interface to supply a start signal of a type of use of a product (P) accessible in the cell (C) receiving - a stage (60) storage in a memory (102) second acquisition means (12) computer data (1) information manager, stamped data representative of the type of use of the product (P), being notified type use of the product (P), for each change of type of use, through a reporting interface (I) associated with the second acquisition means (12) data and capable of receiving said start signal, - a varying time process, a step (63) detection / automatic membership of a terminal (21) declared introduced into the cell reception (C) using the Bluetooth radio module (3), and a subsequent step of creating a sequence adhesion / automatic separation associated with at least one identifying characteristic of said terminal (21) by a module (110) capture and sorting the first acquisition means (11) data being supplied said identification feature once during the stage of declaration terminal (21), carrying out the identification and subsequent automatically, provided in the non declaratively. - In a changing point in the process, a step (64) of the end detection / automatic separation of a terminal (22) declared that has left the cell (C) receiving, via the Bluetooth radio module (3) and a consecutive stage (65) of storage in a memory (101) of the first acquisition means (11) sequence data adhesion / detachment associated with identifying characteristic of said terminal (22) for said module (110) capture and classification, - a step (68) for transmitting a first database (51) of a server (5) center by sending module (10) of the equipment (1) manager of information, data representative of a historical comprising for each terminal (21, 22) declared the dated sequences adhesion / separation completed with the corresponding type of use of the product (P) accessible in the cell (C) reception.