Data Acquisition

[Rahul2494]

Hello friends,

Hope you are doing good!

Myself Rahul. I just started using LabVIEW.

I have been assigned a project wherein my LabVIEW application continuously acquires data from 10 customised controllers. The controllers sends data using MQTT protocol in JSON string form. Previous developer have used producer - consumer design pattern. He tried one queue for data acquisition.

The code doesn't run in real-time , but it should. Can you help me out here.

[santo_13]

Please define your understanding of "Real-time" pertaining to your application.

[Rahul2494]

When controller send signal, it should display on my application within half a second. Half second suffice the need.

[santo_13 · Accepted solution]

A quick review of the code architecture does not show any signs of inefficient code that could slow down your acquisition. A decent producer-consumer architecture with queues and the MQTT packets are user events.

Do you know the latency of the MQTT packets?

You would need to debug further to narrow down the root cause. Without actual hardware to try, it would not be possible to help further. Let's see if others find any potential causes.