Transformations

The Transformation page is to define custom transformation which is applied to the data collected by Receiver. Available transformations are:

• Peak to Peak
• Fast Fourier transformation

Transformation

Firstly, it is necessary to select the desired transformation in the field Transformation.

In the next step, the user needs to select Transformed columns. These values are based on the elements of the input from the device.

Sampling Frequency [Hz] parameter is displayed and required only for the Fast Fourier Transformation.

Sampling Period [ms] parameter is displayed and required only for the Peak to Peak Transformation.

Preview

The preview is displayed after clicking the button Show preview.

Button Restart can be used to display new data available on Receiver. Button refresh will add an additional set of the data to the displayed chart.

Processed data

When the transformation is applied, the processed data format is as follows:

Peak to Peak

{"x":8.0,"y":8.0,"z":11.0,"a":512.0,"temperature":20.486,"sensorId":"vibr 2","source":"127.0.0.1","t":6211.162}

Values x, y, z, a represent Peak to Peak results of the transformation (set in the transformation settings). Sender automatically adds other values collected from the sensor which are not used for the transformation.

Fast Fourier Transformation

{"sensorId":"vibr 2","measurementId":3,"frequencyOrder":50,"frequencyValue":490,"amplitude":0.11384538493967306,"fieldName":"z"}

• sensorId: ID of the device from which the data are collected
• measurementId: unique identifier of the measurement
• freqencyOrder: order of the collected result
• frequencyValue: X-axis value based on the sampling frequency configured in the transformation settings
• amplitude:
• fieldName: element of the selected result