Real-world examples of faulty measurement detection

Example 1

Figure: Faulty measurement detection example 1

The “NCC1ETH1” Flow is detected as having a faulty measurement.

You can easily check it since the source balance point has a large positive imbalance and the destination balance point has a large negative imbalance.

It was proven that this measurement was a real world malfunction as predicted by AVEVA Production Accounting.

Example 2

Figure: Faulty measurement detection example 2

Note that there are unmeasured flows in this example (“3FC109_1” and “3FC109_2”), but that is not a problem for AVEVA Production Accounting, because AVEVA Production Accounting can use a reduced balance matrix that considers the balance envelope shown by the dotted circle, for which all the inflows and outflows are known.

In this example, flow “3FC109” is detected as having a faulty measurement.