System and method for converting analog data to digital data
US6621943B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2000 |
| Grant date | Sep 16, 2003 |
| Priority date | — |
| Expiry date | Dec 27, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/39
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An improved system and method for obtaining data related to the operation of a processing system which converts from analog measurement data, usually obtained from meters and gages, to digital data. Visual images of various types of measuring instruments are collected and used for measuring a process functionality. An image sensor provides an image of a first feature of the measuring instrument. The image data is processed by an image processor, which is operable to detect a first feature and determine its position relative to a second feature of the measuring instrument. The difference in the relative positions (measured distance) can then be compared to a predetermined or expected value. If the measured and expected values are not substantially the same, a signal can be generated which instructs a controller to adjust the process functionality until the measured value reaches the expected value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.