Utility meter controlling the conversion range of an ADC
AssigneeApator Miitors ApS
InventorJens Drachmann
Life of this patent
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Abstract
A utility meter for measuring a utility parameter is disclosed, the utility meter including a measuring system, an analog-to-digital converter having a conversion range, and a control unit, the measurement system being able to transmit a measurement signal representative of the utility parameter to the analog-to-digital converter, and the analog-to-digital converter being able to convert the measurement signal into a digital bit number and transmit the digital bit number to the control unit. The control unit controls the transmission of an ADC control signal based on a set of digital bit numbers to the analog-to-digital converter so as to control the conversion range. Furthermore, a method of operating a utility meter is disclosed.
Claims19
A utility meter for measuring a utility parameter,
- said utility meter comprising
- a measuring system,
- an analog-to-digital converter having a conversion range, and
- a control unit,
- said measurement system being adapted for measuring said utility parameter and transmitting a measurement signal representative of said utility parameter to said analog-to-digital converter,
- said analog-to-digital converter being adapted for converting said measurement signal into a digital bit number and transmitting said digital bit number to said control unit,
- wherein said control unit is configured for controlling the transmission of an ADC control signal based on a set of digital bit numbers to said analog-to-digital converter so as to control the conversion range;
- wherein said utility meter is adapted to extract timing data from said set of digital bit numbers;
- and
- wherein the utility meter is configured to calculate said utility parameter at least partly based on the extracted timing data.
A method of operating a utility meter,
- said utility meter comprising
- a measuring system,
- an analog-to-digital converter having a conversion range, and
- a control unit,
- said method comprising the steps of
- measuring a utility parameter by said measuring system and transmitting a corresponding measurement signal to said analog-to-digital converter,
- converting the measurement signal into a digital bit number by said analog-to-digital converter and transmitting said digital bit number to said control unit,
- controlling by said control unit the transmission of an ADC control signal based of a set of digital bit numbers to said analog-to-digital converter so as to control the conversion range;
- extracting timing data from said set of digital bit numbers;
- and
- calculating said utility parameter at least partly based on the extracted timing data.
Dependencies are inferred from the claim text.