# "Incline" Function Block

Calculates the incline change of a building structure in relation to the reference measurement.

Application example: Monitoring a mast.

#### Input channels

Name

Explanation

Unit

Measuring point Lower Y

Lower measuring point of the structure being monitored

m

Measuring point Lower X

m

Measuring point Lower Z

m

Measuring point Upper Y

Upper measuring point of the structure being monitored

m

Measuring point Upper X

m

Measuring point Upper Z

m

#### Parameter

Name

Explanation

Unit

Phi

Azimut, that is the longitudinal axis angle of the structure being monitored with respect to the north direction of the coordinate system in which measurements were made. With this angle, the displacement vector can be split into parts parallel to the axes (longitudinal and lateral) and thus output. Phi = 0 means that the longitudinal axis of the structure to be monitored is parallel to the north direction of the coordinate system.

gon

Maximum allowed differences to reference point / Transverse

Maximum allowed absolute difference between 'Transverse Displacement' of Measuring Point Low and Measuring Point Upper.
If the value is 0, no validation of the input data is carried out.

mm

Maximum allowed differences to reference point / Longitudinal

Maximum allowed absolute difference between 'Longitudinal Displacement' of Measuring Point Low and Measuring Point Upper.
If the value is 0, no validation of the input data is carried out.

mm

Maximum allowed differences to reference point / Vertical

Maximum allowed absolute difference between 'Height Displacement' of Measuring Point Low and Measuring Point Upper.

If the value is 0, no validation of the input data is carried out.

mm

Maximum allowed differences to reference point / Horizontal value

Maximum allowed absolute difference between 'Horizontal Displacement Amount' of Measuring Point Low and Measuring Point Upper.
If the value is 0, no validation of the input data is carried out.

mm

Maximum allowed differences to reference point / Total value

Maximum allowed absolute difference between 'Total Displacement Amount' of Measuring Point Low and Measuring Point Upper.
If the value is 0, no validation of the input data is carried out.

mm

#### Output channels

Name

Explanation

Unit

Incline change Transverse

Incline in transverse direction
This is calculated from the difference of the transverse displacements of the upper and lower measuring point which is divided by the height distance of the measuring points at the time of the reference measurement.

mm/m

Incline change Longitudinal

Incline in longitudinal direction
This is calculated from the difference of the transverse displacements of the upper and lower measuring point which is divided by the height distance of the measuring points at the time of the reference measurement.

mm/m

Displacement Transverse

Displacement from reference measurement of the transverse part of the vector rotated by Phi

mm

Displacement Longitudinal

Displacement from reference measurement of the longitudinal part of the vector rotated by Phi

mm

Displacement Height

Displacement from reference measurement of height (Phi has no influence here)

mm

Incline change value Horizontal

Horizontal amount of incline change

mm/m

Displacement value Horizontal

Horizontal amount of displacement vector (Phi has no influence here)

mm

Displacement Azimut

Horizontal angle of displacement vector (Phi has no influence here)

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#### Optional validation of input data

If a parameter in the "Maximum allowed differences to reference point" is greater than 0, the input values of the lower and upper measuring point are put through a validation test.

This means that the displacements of the lower and upper measuring point are calculated. Then the absolute differences are determined and compared with the limit values in the parameters.

If the difference is too great, the input values are deemed invalid and they receive the 3050 error code.

In this way, measuring errors can be identified and false alerts due to incorrectly measured points can be avoided. Example: When considering an overhead line mast, it can be assumed that the change in height must be the same for the lower and the upper measuring point. If this is not the case, it is very likely that one of the two measuring points has been measured incorrectly.

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