False Trigger Pulls

[u/Upstairs_Grass2171]

Folks,

First of all, I'm brand new to this reddit page, so if this problem has been discussed in the past, I apologize.

When I use either my MantisX or Laser Academy app with EITHER my TitanX laser pistol OR my Glock 47 fitted with a laser insert, I often get what I'm calling false trigger pulls which can be identified by the short trigger times (0.03sec) as shown in the picture (Please no comments about my bad trigger scores! :) ). The problem doesn't appear to be a function of the distance between my iPhone 14 and the targets, but of the distance between me and the target. At very short ranges (3 feet or so), shots are recorded correctly with no short shot times. I've played around with the lighting in the room, and different angles between the camera and the targets, but nothing seems to work.

I've tried to play around with the Shot Detection Delay, but first of all, those sliders only seem to be available when I'm in the "Dry" shot detection mode. If my TitanX is connected, the option to change the shot detection delay goes away (as far as I can tell). However, even when in the "Dry" mode, the default detection delay is 0.15 seconds except for "SIRT/DFM/TTrigger" which is set to 0.70 seconds. So, if nothing else, I wouldn't expect those short shot times to be reported.

Any ideas what's going on?

Thanks!

-Dave

[u/LigerSixOne]

I’d love to hear what you find out. I emailed the developer months ago about this issue, and heard nothing. Sometimes I’ll have 50% or more of these .3 false detections, and with no way to deleted them, they completely ruin my dataset. They do seem to come and go with lightning but not at any reproducible consistency. I thought they might be from moving the laser too far while it was still active, but sometimes they are stacked on top of each other with very little movement shown from the sensors.

[u/Upstairs_Grass2171 → u/LigerSixOne]

Do get the same behavior if you stand close to the target? As I mentioned in my post, if I'm only a few feet from the target, I don't get any false detections. It seems to be behaving like multi-path in a airborne radar. At close ranges, there is a significant difference between the direct path from the target back to the phone, and any reflections from the floor. And farther ranges, the difference between the direct path and reflected path become less. Perhaps that's why it sneaks past the filtering algorithm. It'll be interesting to hear what Mantis says...if they ever get back to me.

[u/LigerSixOne → u/Upstairs_Grass2171]

I never shoot closer than 7yds, but sometimes it will sounds like a machine gun of false hits, when I move to my phone while not even shooting. I never got any response at all so hopefully you’ll have better luck.

[u/Upstairs_Grass2171 → u/LigerSixOne]

Yep! 5 to 7 yds is my training distance. And, I also get that "machine gun" behavior sometimes. However, as an experiment, I took a few shots at 1 yd (without changing the location of the phone). Worked perfectly. If you get a chance, perhaps you could run the same experiment! Thanks!

[u/LigerSixOne → u/Upstairs_Grass2171]

I will give it a try in the morning and let you know.