Kalman filter not working

General
1

Hi,

The designer is not responding, perhaps somebody has the same experience as I.
I am interested in applying the kalman filter to process RSSI values in general.

Before coding, I just made the most simple configuration but I am receiving failure:

"TypeError: KalmanFilter is not a constructor"

I installed the filter from:

cd ~/,node-red npm install node-red-contrib-kalman

My test config:

[{"id":"617e9a45.0803f4","type":"tab","label":"Flow 3","disabled":false,"info":""},{"id":"f6568dd0.cad2f","type":"inject","z":"617e9a45.0803f4","name":"","topic":"3","payload":"","payloadType":"date","repeat":"10","crontab":"","once":false,"onceDelay":0.1,"x":440,"y":340,"wires":[["b9f0162f.9b0f88"]]},{"id":"b9f0162f.9b0f88","type":"kalman-filter","z":"617e9a45.0803f4","r":0.01,"q":3,"x":600,"y":340,"wires":[["b0bc90a2.cfce"]]},{"id":"b0bc90a2.cfce","type":"debug","z":"617e9a45.0803f4","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","x":800,"y":340,"wires":}]

2

Unfortunately your flow isn't currently importable.Please read the following post How to share code or flow json and then edit the above message.

3

You could also try opening an issue on the nodes github page, but it doesn’t look as if the node has been updated in several years.

4

Thanks, the code is indeed 2 years old.

Point is that the Kalman filter is quite a topic, somebody must have a working implementation.
Of course I could try to create a constructor...

5

It looks like a matter of updating package.json with the correct dependency and node version requirements.

eg. fork the repository, clone it locally into the node-red/node_modules directory, cd to the module, update package.json, cd back to the node-red directory, perform npm install <repo>