i4connected Knowledgebase 5.6

The Interpolation feature

Abstract

Check out a set of examples providing an overview about the i4connected Signals Interpolation feature.

The Interpolation feature calculates the missing data points in a gap by obtaining the difference between last data point before the gap and the first data point after the gap and dividing it for the number of missing 15 minutes periods.

The Signal Interpolation can be activated in the Add / Edit Signal panel.

Interpolation_active.jpg

The Signal Interpolation setting

Let's take as a first example the image below:

Interpolation1.png

Example 1 - Interpolation

The dashed line represents the detected gap. Like in the first example, the gap is detected between 0:15 and 1:45. The alarm is raised with the start and end time of the gap and thanks to the Interpolation feature, the missing values are generated as seen in the image.

Now let's take a second example:

Interpolation2.png

Example 2 - Interpolation

Like in the previous example, the gap is detected between 0:15 and 1:45. The alarm is raised with the start and end times of the gap and the Interpolation functionality generates the missing values between the gap start and gap end.

To enable the interpolation of missing measurements, set the Interpolate property of the signal to true. The options of the Interpolate property are:

  • null: Gap Detection and Interpolation disabled;

  • false: Gap Detection enabled, Interpolation disabled;

  • true: Gap Detection and Interpolation enabled.