Microprocessor-based monitoring or protection device...

Details Microprocessor-based monitoring or protection device... Microprocessor-based monitoring or protection device...

G - Physics

01

R

G01R 19/165 (2006.01) G06F 7/02 (2006.01) G08C 15/06 (2006.01) H02H 7/20 (2006.01)

Patent

CA 2053810

ABSTRACT MICROPROCESSOR-BASED MONITORING OR PROTECTION DEVICE COMPRISING AN ANALOG DATA ACQUISITION SYSTEM A certain number (8) of high bits of each sample (12 bits) supplied by an analog-to-digital converter (3) is used as the address (AD1) of a comparison zone (6a) of a RAM (6) associated with the microprocessor (5) of the device. In this comparison zone (6a) the result of comparison of this sample with a predetermined number of thresholds has previously been recorded. The sample (12 bits) and associated comparison result (4 bits) are stored in a storage zone (6b) of the RAM for subsequent processing by the microprocessor. This simultaneous acquisition of a sample and of the prerecorded result of comparison of this sample with the thresholds minimizes the time devoted by the microprocessor to data acquisition. Refer to figure 1.

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