Hello I wrote a scipt in python to detect distance between camera and object, i want to send the distance to an appli node red. Is it possible to convert this script into a .json file and import it into node red to get the readed data into the debug node or into the dashboard ? i've tried to exec…

You are on the right track, very good!! I thought the same idea would work and I needed to use some more nodes. I added a new path from the original 3 rules switch (just to keep the notification we already had). In there, the switch checks if the distance is < 0.5 or higher. Depending on, it sends t…

This looks like you have some issue with path to the ref image. It looks like the script cannot find the ref_image in "ref_image = cv.imread("Ref_image.png")". Double check the file name!! The flow I sent you was an example. It looks like you have other required files etc located in "/home/pi/Deskt…

i'm using a raspb4 , i've tried to put the script and all the files needed in the same folder but in vain :pleading_face:

The prob is in the path of the ref_image , Thank u so much , IT WORKS !!!

Excellent, that is good news! Just happy it worked, shows the power of mqtt, you can develop many services in Python, run them like this or in background and integrate with Node-RED in a simple & efficient way

yes but how can i stop running the script with node red ?

In the flow I sent you, there is an inject node a named "Stop-Distance-Analyzer". If you click on the button trigger, it send the message to your script via mqtt, the scripts recognizes the message, sets th_abort to True, the script terminates the thread and itself. You see it in the python code

It's this line you have to modify client.publish("distance/result", str(Distance*0.0254)) What is the name of the variable that holds the object name?

i've added object_detected = classNames [classIds[i]] in the 83th line

So you have to return it also like return object_width, bbox, object_center_x, object_center_y, object_detected And in your call to function findObjects object_width_in_frame, bbox, OB_X ,OB_Y, OB_detected = findObjects(outputs,img) then change this line to also publish info about found object …

Convert script python to .json file

General

wejdene.guedri 9 August 2021 14:51 41

and if i want to send the object name with the distance, should i just modif this line in python "client.subscribe("distance", 2)" ?

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Convert script python to .json file

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