Search found 14 matches
- Wed Apr 18, 2018 8:09 am
- Forum: Loco Positioning System
- Topic: LPS configuration
- Replies: 28
- Views: 12712
Re: LPS configuration
Ah. I misunderstood how the positioning system works, my understanding was that the LPS sends a position setpoint to the Crazyflie and then the Crazyflie uses TWR/TDoA to position itself to the setpoint, hence why I observed a difference in the flashing LEDs. This explains a lot, my system seemed to...
- Tue Apr 17, 2018 7:04 am
- Forum: Loco Positioning System
- Topic: LPS configuration
- Replies: 28
- Views: 12712
Re: LPS configuration
Hi Arnaud, I'm running swarmSequence.py so that should be TDoA unless I've misunderstood something. I have very limited access to the lab now (my project is almost completed) so I will have to check the LEDs but my videos albeit low resolution suggest that the TX LED is flashing on the deck that is ...
- Thu Apr 12, 2018 3:12 pm
- Forum: Loco Positioning System
- Topic: LPS configuration
- Replies: 28
- Views: 12712
Re: LPS configuration
Yes that is correct, LED's flash at start-up and disconnect after 10/15 seconds until just one Crazyflie LPS deck remains flashing. All CF's are using the latest firmware (I re-updated them prior to the latest test to check). I do not believe it is a connection problem as the deck that remains flash...
- Mon Apr 09, 2018 9:43 am
- Forum: Loco Positioning System
- Topic: LPS configuration
- Replies: 28
- Views: 12712
Re: LPS configuration
Hi Arnaud, Sorry for the delay, I had/havce limited access to the lab. All copters are using the latest firmware and I have the latest version of the lib, the take-off is fairly smooth now. When flying four CF's, each with an LPS and flow deck installed, only one of them seems to be in it's set posi...
- Fri Mar 16, 2018 12:23 pm
- Forum: Loco Positioning System
- Topic: LPS configuration
- Replies: 28
- Views: 12712
Re: LPS configuration
Hi, sorry for the delay in reply, I am using the latest firmware, I have tested 2 CF's extensively using swarmSequence.py and seem to have hit a good success rate (~75%) by: - Resetting the power to the LPS prior to each test - Restarting each CF prior to each test - Resetting the radio prior to eac...
- Wed Mar 07, 2018 10:49 am
- Forum: Loco Positioning System
- Topic: LPS configuration
- Replies: 28
- Views: 12712
Re: LPS configuration
I agree that the CF's do not have a position update from the system. I managed to run autonomousSequence.py after restarting and reconfiguring (setting the coordinates) of the LPS in the Windows client. I do notice however the TX light flashing during flight, my understanding is that this means the ...
- Fri Mar 02, 2018 1:52 pm
- Forum: Loco Positioning System
- Topic: LPS configuration
- Replies: 28
- Views: 12712
Re: LPS configuration
I have tried 2 CF's facing X and this had a slightly better success rate, but still on more than half of test flights one (usually the second) would either stay stationary or fly sidewards and crash into our cage. I have also tried with 3 CF's twice: Test 1 - CF 1 took off, hovered and landed where ...
- Mon Feb 26, 2018 10:15 am
- Forum: Loco Positioning System
- Topic: LPS configuration
- Replies: 28
- Views: 12712
Re: LPS configuration
My coordinate system is right-handed, it's just rotated 90deg relative to the one you provided - in swarmSequence.py, you have a diagram of the nodes and starting positions at the start of the code, these don't match my orientation. I have altered them to match my lab setup and this did initially yi...
- Sun Feb 25, 2018 11:24 am
- Forum: Loco Positioning System
- Topic: LPS configuration
- Replies: 28
- Views: 12712
Re: LPS configuration
Thanks Arnaud, 1) This fix worked, flying 2 CF's with swarmSequence.py worked, however I couldn't seem to replicate the results, the behaviour was very odd. I managed to get 2 to take-off, hover for a second and then land perfectly but on a second run one of the CF's fly totally off-course and crash...
- Mon Feb 19, 2018 11:21 am
- Forum: Loco Positioning System
- Topic: LPS configuration
- Replies: 28
- Views: 12712
Re: LPS configuration
I have 2 new questions: 1) RE trying to fly multiple CFs together using LPS. I am getting an error when trying to run swarmSequence.py 'cannot import name 'CachedCfFactory' '. I have found CachedCfFactory in 'swarm.py'. Can't seem to find a mention of this module anywhere on these forums? 2) Running...