In manufacturing process, the indoor location information of physical object is an essential part in storage and transport link. The efficient perception of indoor location is able to significantly reduce the system load and also improves its real-time performance. In this paper, a novel RFID indoor localization algorithm using Master-Slave reference tags scheme (MSRT) is presented. The algorithm divides the sensing area into several subspaces with master reference tags to realize rough location. In each subspaces, slave reference tags are used to perform partial location. A set of experiments have been conducted and the results demonstrate that the proposed method can reduce system redundancy and server load without decrement of accuracy.

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