Method for improving the transmission quality between a data collector and a plurality of autonomous measuring units, and communication system
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United States of America Patent
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Jan 5, 2021
Grant Date -
Sep 5, 2019
app pub date -
May 21, 2019
filing date -
Dec 3, 2016
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Abstract
A method improves the transmission quality between a data collector and a plurality of metering units. A first communication module is assigned to the data collector and a second communication module is assigned in each case to a metering unit. The second communication module transmits data via radio signals to the first communication module. The first communication module has a first frequency reference device and the second communication module has a second frequency reference device. The radio signals transmitted are dependent on the second frequency reference device. The measurement of a parameter of the radio signal is performed by the first communication module. An estimation of an error of the second frequency reference device on the basis of the parameter measured values is determined. An adjustment of the frequency of the first frequency reference device is performed such that the error is reduced.
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