Search found 47 matches

by arix
Sun Dec 03, 2017 1:27 pm
Forum: Loco Positioning System
Topic: can i use only use lps x y
Replies: 1
Views: 1766

can i use only use lps x y

hello
i find my lps axe z is so unprecise . can i only use X Y to fly and the z use Altitude Hold Mode ?? thank you !
by arix
Tue Nov 14, 2017 7:54 am
Forum: Loco Positioning System
Topic: About timestamp correction function
Replies: 1
Views: 1712

About timestamp correction function

Dwcorrecttimestamp(dwdevice_t *Dev,dwtime_t *timestamp), In the document ,corrective function:Actual distance = Reported Distance-range Bias correction, your code according to the formula: Actual distance= reported distance+Range Bias correction implementation ?Excuse me : why do you do this? Thank ...
by arix
Tue Nov 14, 2017 7:14 am
Forum: Loco Positioning System
Topic: lps deck don't work
Replies: 3
Views: 2129

Re: lps deck don't work

SYS: Crazyflie 2.0 is up and running! SYS: Build 39:e51e195cfe8f (2017.06-39) MODIFIED SYS: I am 0x37303638343551192B0039 and I have 1024KB of flash! CFGBLK: v1, verification [OK] DECK_DRIVERS: Found 11 drivers DECK_INFO: Found 0 deck memory. DECK_INFO: compile-time forced driver bcDWM1000 added DEC...
by arix
Mon Nov 13, 2017 2:15 pm
Forum: Loco Positioning System
Topic: lps deck don't work
Replies: 3
Views: 2129

Re: lps deck don't work

sorry i draw my deck pcb so i need to write ow . Updated id=3 Type : 1 Size : 112 Valid : True Name : None VID : 0xBC PID : 0x06 Pins : 0x1C021C13 Elements : Board revision=A Board name=bcDWM1000 This is my write but i don't know pins so i am tring . can you help me how to change to correct.
by arix
Fri Nov 10, 2017 2:38 pm
Forum: Loco Positioning System
Topic: lps deck don't work
Replies: 3
Views: 2129

lps deck don't work

:D :D i installed lps deck but it can't work call you tell me why?Thank you~ config.mk :ESTIMATOR = kalman LPS_TDMA_ENABLE=1 CFLAGS += -DTDMA_NSLOTS_BITS=1 SYS: Build 20:0e886c2c3176 (2017.06-20) MODIFIED SYS: I am 0x37303638343551192B0039 and I have 1024KB of flash! CFGBLK: v1, verification [OK] DE...
by arix
Sat Oct 28, 2017 3:45 pm
Forum: Bitcraze
Topic: HELP me about pcb
Replies: 1
Views: 1537

HELP me about pcb

I want to draw a lps deck pcb,accroding to schdoc. i want know what is the GS1 to GS8 components ? can you help me about this components. Thank you very much !
by arix
Fri Oct 27, 2017 2:46 pm
Forum: Loco Positioning System
Topic: how to change uwb update rate
Replies: 14
Views: 7381

Re: how to change uwb update rate

In TWR mode there is no hard limit, you can just scann more anchor in the tag. For TDoA mode there is a harder limit of 8 anchors: the anchors are time-slotted using TDMA, so there needs to be a modification on the TDoA anchor to add more timeslot in TDMA. The tag mode is a TWR tag mode. For TDoA y...
by arix
Thu Oct 26, 2017 2:56 pm
Forum: Loco Positioning System
Topic: how to change uwb update rate
Replies: 14
Views: 7381

Re: how to change uwb update rate

For TWR, one reason could be that you modified the algorithm in such a way that you are starting a new ranging before the previous is finished, this would induce this kind of problems. You can test this assumption by putting back the 10ms timeout and see if it solves the problem. If it does, you sh...
by arix
Tue Oct 24, 2017 12:31 pm
Forum: Loco Positioning System
Topic: how to change uwb update rate
Replies: 14
Views: 7381

Re: how to change uwb update rate

Do you mean that by changing the printf you get different precision? Are you sure you are printing the anchor ID correctly? For TDoA mode, you can put the node in sniffer mode and switch the sniffer to binary (there is a python script for that). This will give you all the raw packets and they can b...
by arix
Mon Oct 23, 2017 3:23 pm
Forum: Loco Positioning System
Topic: how to change uwb update rate
Replies: 14
Views: 7381

Re: how to change uwb update rate

Hi, I have cleaned up all the duplicate messages you have posted, do you experience problems with using the forum? Thanks for the explanation of what you have done! What kind of positioning algorithm are you using in ROS? The algorithm in the Crazyflie is running as fast as possible. The algorithm ...