darksidelemm
commented
3 years ago Hmm.
At the moment each task (Scan, Decode) can really only handle one SDR. Parallelising the scan & detection steps may provide some detection speed improvements, but we would need to be a little careful as the detection stage does use up an entire code when running (dft_detect runs slightly slower than realtime - not really a problem at the moment).
As a simple first-pass of this (just using two SDRs)
- The Scan thread to acquire two RTLSDRs.
- One of the just runs the rtl_power scan over and over.
- When peaks are detected, they are added to a queue, which another thread running detections works through.
- If a sonde is detected it is either allocated to another SDR, or a SDR is released from the Scan thread (which goes back into a regular scan mode: scan, detect).
There would need to be some limits in how the parallel scans and detections are run. Perhaps instead of a queue, it's just a list which detections are added to if they are not already in the list? (How do we deal with the white/greylist in this situation?)
I'm not sure I have the time to work on this one - If someone wants to give it a crack, I'd suggest starting by making a separate ParallelSondeScanner class: https://github.com/projecthorus/radiosonde_auto_rx/blob/master/auto_rx/autorx/scan.py#L527
You will need to allocate two SDRs to it here: https://github.com/projecthorus/radiosonde_auto_rx/blob/master/auto_rx/auto_rx.py#L131
Good day, I try to run radiosonde_auto_rx with 2 RTLSDR's. From logs i see that only first allocated RTLSDR doing search for peak and sonde detection job, while another RTLSDR - nothing. Will be nice, if can all connected and free RTLSDR in same time to do search for peaks and then to do sonde detection task.