Hello friends. Today i am testing a current HAt to measure my 4-20 mA signal. For this i am using the waveshare current HAt and my ROCKPI E, where my Node-red instance is running. To read the current hat i am using this node: node-red-contrib-easybotics-ina219-sensor Sadly the signal is not very…

Have you tried the range node to limit bad readings. e.g. [{"id":"dc1e8f6e7786190a","type":"inject","z":"65617ffeb779f51c","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"1","payloadType":"num","x":150,"y":120…

Thank you for the answer The problem is, that the outliners are in the 4-20 range. I should get the value, lets say 5.5. I will get: 5.5 5.4 5.5 5.4 5.4 7.0 This seven is a outliner. like i meantioned above. the problem is, that the input can change realy fast. So i am kinda now in a wired s…

How about the filter node then. [{"id":"fdf121a121fc1e30","type":"inject","z":"b9860b4b9de8c8da","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"[5.5, 5.4, 5.5, 5.4, 5.4, 7.0, 5.5, 5.4, 5.5, 5.4, 5.4]","payload…

How do you know, in that example, that 7 is an outlier?

Hello, @colin0031 Because i can control the input for testing. I can send a 4-20 mA signal, where i know that it is a 5.5 mA signal. I am 100% sure that the input isnt causing this outliners. It is a receiver thing. My guess is, that it is a I2C range setting thing. A littile bachground: I am u…

[image] Manuel_o: What if my input signal is changing? The small data set you supplied the signal is changing. So please better explain the input signal how it changes. It is impossible to help with out all the info, drip feeding us relevant information is not helpful. We need to work out ho…

[image] Manuel_o: @colinl Because i can control the input for testing. I meant how would you know that it is spurious if you saw that sequence come in? [image] Manuel_o: It is a receiver thing I suggest using a receiver that works.

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Smoothing a value and check for extrems

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Topic		Replies	Views
Anyone done much work with the Smooth Node? General	20	5814	5 April 2020
Prevent outlier reading going to Influx General	7	227	15 September 2023
Remove / smoothen unrealistic item values which randomly appear General	4	388	24 May 2022
Trying to understand the filter to remove some outlier values General	6	227	8 January 2024
Slow down incoming values when the changes are not major General	3	331	4 June 2021

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Smoothing a value and check for extrems

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