Search found 816 matches
- Fri Aug 10, 2018 8:09 pm
- Forum: Trouble Shooting
- Topic: Difficulty getting timer to trigger
- Replies: 2
- Views: 930
Re: Difficulty getting timer to trigger
Elemento1991, I purchased this app for autocross. You can't do autocross at all well without at least a 5Hz GPS. The 1Hz, heavily filtered, phone GPS is not good enough. It also tends to drift. That's usually OK for a race track where you can use a wide detection corridor, not so much for autocross....
- Fri Aug 03, 2018 9:50 pm
- Forum: Tracks
- Topic: Creating Tracks for Motocross
- Replies: 5
- Views: 4909
Re: Creating Tracks for Motocross
Hi Monika, narrow tracks like yours profit if trigger directions are set and detection corridor is narrow, so you should keep that approach. I was under the impression that setting a direction automatically set the detection corridor to wide. Is that no longer true? Or can you set the corridor width...
- Sun Jun 03, 2018 11:25 pm
- Forum: Global Navigation Satellite System (GNSS) Sensors
- Topic: VBOX Sport And HLT different data
- Replies: 2
- Views: 2025
Re: VBOX Sport And HLT different data
You can minimize accelerometer smoothing in HLT by increasing the accelerometer data rate to 100Hz from the default 30Hz in Expert Settings. This is a requirement, in my opinion, for autocross data logging.
- Thu May 10, 2018 11:16 pm
- Forum: Trouble Shooting
- Topic: Export very touchy in Android
- Replies: 5
- Views: 1973
Re: Export very touchy in Android
Isn't that the definition of background?svtdoug wrote:Ok, no background processing, but shutting off the screen for a moment and then back on?
- Thu May 10, 2018 11:15 pm
- Forum: Trouble Shooting
- Topic: HLT doesn't record acceleration data when using external GPS
- Replies: 41
- Views: 14383
Re: HLT doesn't record acceleration data when using external GPS
I have an iPhone 5s running iOS 11.3.1, XGPS160 and GoPoint BT1. I usually get accelerometer data with each fix. The times I don't, it's usually related to accelerometer calibration. I use CAM PRESET for calibration. I use the "right-hand drive" preset, but do not get any acceleration dat...
- Thu May 10, 2018 1:06 am
- Forum: Trouble Shooting
- Topic: Export very touchy in Android
- Replies: 5
- Views: 1973
Re: Export very touchy in Android
Video processing is very resource intensive. So no, it's not something that can run in the background. In fact, HLT doesn't run at all in the background and releases all resources far as I know.Shouldn't the process be able to run in the background?
- Thu May 10, 2018 1:02 am
- Forum: Trouble Shooting
- Topic: HLT doesn't record acceleration data when using external GPS
- Replies: 41
- Views: 14383
Re: HLT doesn't record acceleration data when using external GPS
I have an iPhone 5s running iOS 11.3.1, XGPS160 and GoPoint BT1. I usually get accelerometer data with each fix. The times I don't, it's usually related to accelerometer calibration. I use CAM PRESET for calibration. You can check that in the Administration/Settings menu. That preset assumes that th...
- Mon May 07, 2018 10:22 pm
- Forum: Trouble Shooting
- Topic: HLT doesn't record acceleration data when using external GPS
- Replies: 41
- Views: 14383
Re: HLT doesn't record acceleration data when using external GPS
Circuit Tools doesn't use measured acceleration data. It calculates it from the GPS position data and uses it's own smoothing algorithm. If you look at the exported .vbo file in Notepad or some other text editor, is the acceleration data there? I'm betting not.
- Wed Feb 14, 2018 3:37 pm
- Forum: Using LapTimer
- Topic: Yaw Rate Chart
- Replies: 21
- Views: 9048
Re: Yaw Rate Chart
The readings will still be valid for the vehicle frame of reference. But at high yaw angles, they won't look the same as values calculated from GPS data in the Earth frame, assuming your GPS antenna is reasonably close to the center of mass of your car. In theory you could calculate the yaw angle fr...
- Tue Feb 13, 2018 3:44 pm
- Forum: Using LapTimer
- Topic: Yaw Rate Chart
- Replies: 21
- Views: 9048
Re: Yaw Rate Chart
I am digging out the venerable thread after a splendind morning sliding around on an icy AX track this morning. If there is a lot of drifting, handbrake U-turns involved, should I use GPS-based acceleration data to compute the yaw rate? I am using a 20hz GPS with a consistent 0.77 HDOP (3m accuracy...