Invention Grant
US09189953B2 RF dynamic power control and radio protection in metering devices 有权
计量装置中的RF动态功率控制和无线电保护

RF dynamic power control and radio protection in metering devices
Abstract:
Techniques for dynamic power control of a radio of a utility data collection device (e.g., utility meter configured for wireless communications) are described that utilize a detection scheme applied to a Front End Module (FEM) in the utility data collection device. A utility data collection device measures a Voltage Standing Wave Ratio (VSWR) presented to the FEM during transmission. The result of this measurement allows the utility data collection device to dynamically control the input power to a FEM transmit portion. Utilizing these techniques, the utility data collection device can adjust to environmental changes and conditions experienced in the field.
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