| 摘要 |
The present invention discloses a new wireless communication network system for collecting audience selection data. The communication system comprises at least one tree-master device, at least one Pico-relay device (S), at least one Pico-master device (PM) and at least one card Device. The network architecture is characterized by hierarchical organization of local networks interconnected by PicoRelay devices (PR) and each controlled by one PicoMaster device, wherein the tree-master controls and manages the network structure and each card device can function as PicoRelay or PicoMaster device according to a predefined replacement lists. |
