System, device, method, program for controlling communication between radio frequency identification tag and network, and manufacturing method for manufacturing products using the control method

Abstract

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.

Description

technical field [0001] The present invention relates to a system, device, method and program for controlling communication between a Radio Frequency Identification (RF-ID) tag and a network according to a network state, and a manufacturing method for manufacturing a product using the control method. Background technique [0002] Various management systems are used in the fields of manufacturing and distribution. In these management systems, individual products and individual components constituting the products are identified using some identification information and managed using the identification information. For example, the management system manages the progress in the manufacturing process and its distribution, each component mounted on a product, the content of a test to be performed for each product, the test result thereof, and the like. There are two types of management systems: individual management systems for each individual management purpose, and management s...

AI Technical Summary

Problems solved by technology

[0024] However, the above-mentioned existing method has the problem that the deterioration of the network state and the system failure (down) of one system become the bottleneck of the entire manufacturing process

However, if the overflow of the buffer 112 is ignored in order to avoid a stop, a large amount of data corresponding to a long time is lost at this time and it is impossible to recover the data, thereby also hindering the operation of various management systems

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