| 摘要 |
The invention relates to an electronic price label system and in particular to a system and method which determines a number of electronic price label (EPL) data message transmission attempts to an EPL (18). A transmitter (12,10) transmits a data message to the EPL (18). A receiver (12,16) receives a return signal from the EPL (18). A storage system (28) stores a status flag representing a first number of times the data message is transmitted by the transmitter to the EPL (18), the status flag being based upon an established signal to noise (S/N) ratio. A communication base station (CBS) (10) determines a new S/N ratio from the return signal. A runtime analyzer program (26) determines whether the new S/N ratio is below a range of S/N ratios that includes the established S/N ratio, and if it is, provides a new status flag representing a second number of transmission times greater than the first number of transmission times. The transmitter (12,16) transmits a subsequent data message the second number of times. <IMAGE> |
