| 摘要 |
Provided is a method for reading an electronic tag. The method comprises: broadcasting, by a reader-writer, according to a predetermined period, a detection signal in a first channel (S101); receiving, by the reader-writer, a first detection modulating signal returned in response to the detection signal in the first channel (S102); sequentially broadcasting, by the reader-writer, and when a signal-to-noise ratio of the first channel is determined to be less than a first predetermined value according to the first detection modulating signal, the detection signal in remaining channels of transmission channels other than the first channel (S104); and reading, by the reader-writer, and when a signal-to-noise ratio of a second channel is determined to be greater than or equal to the first predetermined value according to a second detection modulating signal returned in response to the detection signal in the second channel of the transmission channels, data of an electronic tag in the second channel (S105). The present invention addresses a technical problem of low accuracy in reading electronic tags caused by communication interferences between the reader-writer and the electronic tags. |
