SYSTEM, DEVICE, METHOD FOR CONTROLLING COMMUNICATION BETWEEN RADIO FREQUENCY IDENTIFICATION TAG AND NETWORK, RECORDING MEDIUM HAVING PROGRAM FOR CONTROLLING COMMUNICATION BETWEEN RADIO FREQUENCY IDENTIFICATION TAG AND NETWORK, AND MANUFACTURING METHOD FOR MANUFACTURING PRODUCTS USING THE CONTROL METHOD

摘要

This control system controls communication between a management system (108, 110, 111) for managing the work process of a product (101, 101A, 101B, 101C, 101E) using identification information stored in an RF-ID tag (230, 230A, 230B, 230C, 230D, 230E) and a plurality of first radio communication units (202, 202A, 202B, 202C) each for radio communicating with an RF-ID tag (230, 230A, 230B, 230C, 230D, 230E) provided in relation with one stage (A, B, C, E) of the work process via a network. The control system comprises a network state monitor unit (203, 210) for monitoring the state of a network and outputting network state information, a determination unit (204) determining in which mode the network should be operated, the non-network mode or the network mode, a control unit (204, 205, 206, 207) for enabling the first radio communication unit (202, 202A, 202B, 202C) to write additional information (231A, 231B, 231C) corresponding to a stage (A, B, C, E) corresponding to the first radio communication unit (202, 202A, 202B, 202C) when it is determined that the network should be operated in the non-network mode and transmitting the additional information (231A, 231B, 231C) to the management system (108, 110, 111) when it is determined that the network should be operated in the network mode and an information collecting unit (220) for reading identification information and the written additional information (231A, 231B, 231C) from the RF-ID tag (230, 230A, 230B, 230C, 230D. 230E) and storing it.