摘要:
The invention relates to a system comprising a reading unit and devices (1) having a pre-determined ranking. Each device (1a, 1b, 1c) comprises a treatment circuit connected to a first antenna (4) that is to be coupled to an outer antenna (3, 5), and a second antenna (5) to be coupled to an antenna (4) of a higher-ranking device (1). The first antenna (4a) of the rank one device (1a) is coupled to an antenna (3) of the reading unit. The addressing of a device (1c) ranking higher than one by the reading unit is carried out by means of associated lower-ranking devices (1a, 1b). A device (1a1) with a pre-determined ranking is associated with a sub-set (8a) of higher-ranking devices (1b11, 1b12), in such a way as to form a hierarchical tree.
摘要:
The invention relates to a system comprising a reading unit and devices (1) having a pre-determined ranking. Each device (1a, 1b, 1c) comprises a treatment circuit connected to a first antenna (4) that is to be coupled to an outer antenna (3, 5), and a second antenna (5) to be coupled to an antenna (4) of a higher-ranking device (1). The first antenna (4a) of the rank one device (1a) is coupled to an antenna (3) of the reading unit. The addressing of a device (1c) ranking higher than one by the reading unit is carried out by means of associated lower-ranking devices (1a, 1b). A device (1a1) with a pre-determined ranking is associated with a sub-set (8a) of higher-ranking devices (1b11, 1b12), in such a way as to form a hierarchical tree.