Patent ID: 7880620

Claim:
A construction site management system for managing a construction material product and equipment for installation at a construction site, comprising: the RFID tag which is attached on the product, the RFID tag comprising: a long-distance communication RFID having an IC chip and a loop-shaped long antenna; a plurality of short-distance communication RFIDs formed inside the loop-shaped antenna that have an IC chip and a short antenna and use a different reading frequency for the reading device from the reading frequency of the long-distance communication RFID wherein tear-off lines are formed on the RFID tag for separating the short-distance communication RFID from the whole RFID tag, and when the short-distance communication RFID is separated the loop-shaped antenna of the long-distance communication RFID is also cut up and the RFID tag has an overall management identification code for identifying the whole tag before separation and a partial management identification code for identifying a partial tag after separation; a first reading device which reads the long-distance communication RFID of the RFID tag; a second reading device which reads the short-distance communication RFID of the RFID tag; a management server which is capable of communication with the first and second reading devices and has a database for managing entire management information; a communication network which communicates information between the first and second reading devices and the management server and a plurality of access points for accessing the communication network; wherein the construction site management system is made up of two systems including: a product management system for management until a product manufactured at a factory is transported to and used at a construction site, the product management system including the long-distance communication RFID of the RFID tag, the first reading device, a file on product management in the database, and an in-premise wide area network included in the communication network for covering in-premise communication at the construction site as well as access points for the in-premise network, and a work management system for managing work progress at the time when the product is used at the construction site, the work management system including the short-distance communication RFIDs of the RFID tag, the second reading device, a file on work management in the database, and an in-building wireless network included in the communication network for covering communication in a building under construction as well as access points for the in-building network.