CBD causing no stops or trips

Hi Guys,
I have a device that im testing at the moment and everything runs fine until I tested CBD driving/stops.
I was parked in the city for about 1 hour at one location and then another location for about 4 hours.

If I look at trips there is a gap from 745AM to 205PM and no stop is recognised either.
If I check replay I can see the location fine.

Is this a common issue with condensed city zones or is could something else be causing this?

All stops and trips worked outside the city zone.

Thanks in advance

Impossible to tell without details. Are you using fast reports (>1 day)?

Hi Anton,
I will try to provide as much detail as possible.
I am running version 5.9, I have not changed anything in the configuration relating to reporting so whatever is the default of 5.9 is what it's set to.

The report I am running is "Today", my drive was today and I ran the report today.
All other trips and stops seem to work perfectly through out the day apart from the city.

I just ran an "Events" report and it says the device went offline at 935am and came back online at 1:57PM

• This makes sense why there would be stops or trips BUT I was watching the device live when I was in the city to make sure it was working.
  I can also see the full trip in "replay"

I am using a h02 protocol device

• GPRS Active Upload time 10sec - Sleep Upload time: 300sec
• Sleep active in 60sec

traccar.xml the has the following

• Database details
• Email details
  Others:

<entry key='report.trip.minimalParkingDuration'>60</entry>
<entry key='report.trip.minimalNoDataDuration'>80</entry>

sorry just to elaborate on the stops that were registered:

• Was not able to edit the previous reply (Unauthorized)

In Replay start stops were:
Registered stops:

2023-11-30 06:37 AM	2023-11-30 06:38 AM
2023-11-30 07:05 AM	2023-11-30 07:09 AM
2023-11-30 07:30 AM	2023-11-30 07:41 AM
2023-11-30 07:44 AM	2023-11-30 02:05 PM
2023-11-30 02:21 PM	2023-11-30 02:29 PM

These are not registered:
There was a stop at 7:53AM - 9:15AM
There was a stop at 9:35AM - 1:57PM

If the reports are for <= 1 day, this logic will be used:

https://www.traccar.org/trips-stops/

I understand, and its working correctly but what is confusing me 5 stops that worked to the 2 that didn't?

It's only the 2 that were not registered that were in the city. I thought I would ask the question and see if anyone else has experianced the same kind of issue in busy cities and if there is a way to combat it. I'm thinking it must be an interruption of service?

This is a full report
Stops:

2023-11-30 06:37 AM	2023-11-30 06:38 AM	ADDRESS 	a minute
2023-11-30 07:05 AM	2023-11-30 07:09 AM	ADDRESS 	4 minutes
2023-11-30 07:30 AM	2023-11-30 07:41 AM	ADDRESS 	11 minutes
2023-11-30 07:44 AM	2023-11-30 02:05 PM	ADDRESS 	6 hours
2023-11-30 02:21 PM	2023-11-30 02:29 PM	ADDRESS 	8 minutes
2023-11-30 02:47 PM	2023-11-30 02:55 PM	ADDRESS 	7 minutes
2023-11-30 02:57 PM	2023-11-30 04:00 PM	ADDRESS 	an hour

Events:

2023-11-30 06:38:03 AM Device moving - Car started and started moving
2023-11-30 07:05:40 AM Status offline - Stopped for a minute or so - did not turn car off
2023-11-30 07:07:34 AM Status online - random online
2023-11-30 07:32:02 AM Device stopped - Stopped - parked did not turn car off
2023-11-30 07:32:57 AM Status offline - Turned car off
2023-11-30 07:37:22 AM Status online - Back in the car
2023-11-30 07:42:30 AM Device moving - Started driving
2023-11-30 07:45:08 AM Device stopped - First intersection of the city, heavy traffic at a red light.
- Driving for another 10mins or so through the city then parked at ~753AM
2023-11-30 07:53:15 AM Status offline - Parked at first location in the city
2023-11-30 09:15:35 AM Status online - Started car and left first location
2023-11-30 09:17:35 AM Status offline - Driving
2023-11-30 09:31:17 AM Status online - Driving
2023-11-30 09:35:56 AM Status offline - Stopped at this location - not seen as a stop
2023-11-30 01:57:14 PM Status online - Started driving
2023-11-30 02:06:09 PM Device moving - From here onwards reported correctly.
2023-11-30 02:22:05 PM Device stopped
2023-11-30 02:22:42 PM Status offline
2023-11-30 02:24:25 PM Status online
2023-11-30 02:26:29 PM Status offline
2023-11-30 02:28:01 PM Status online
2023-11-30 02:30:15 PM Device moving
2023-11-30 02:48:54 PM Device stopped
2023-11-30 02:50:11 PM Status offline
2023-11-30 02:54:06 PM Status online
2023-11-30 02:56:09 PM Device moving
2023-11-30 02:58:24 PM Device stopped
2023-11-30 02:59:32 PM Status offline
2023-11-30 03:37:42 PM Status online
2023-11-30 03:39:43 PM Status offline
2023-11-30 03:50:01 PM Status online
2023-11-30 03:52:02 PM Status offline
2023-11-30 03:58:41 PM Status online
2023-11-30 04:00:42 PM Status offline

Anyway, I am going to test tomorrow by stopping at different locations throughout the city and see how that pans out.
Sorry for a long post. Just trying to understand if its something that I can control or not, I'm new to all this :)

You really need to look at the raw data (for example route report) and see what happened there. For example, it's possible that GPS location is fluctuating more in the city because of the reflected GPS signal from tall building.