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I Got back to the office end of day Friday and had a present waiting for me.?ÿ
Spent the morning messing with it to finally get it to connect to VRS (finally got it going by switching to rtcm3.2 - then switched back to CMRx and it still worked, not sure what was going on there).?ÿ
Setup the IMU bias calibration and e bubble. Then I surveyed my neighbors property for her and everything on the 1978 survey fit within 10-20mm or less, distance and bearing. That was the biggest surprise of the day.?ÿ
For some reason I haven't got the IMU compensation working. It says it's on and it's showing it active in the top right corner next to rtk, but when I shoot off level it's still giving me the excess tilt warning and I confirmed by taking 2 shots leaning opposite directions that it isn't functioning.?ÿ
I'll watch another YouTube video or two tonight now that I'm relaxing. The last bar I shot was in near complete darkness in the forest behind our property, I could hear the coyotes starting to howl not too far away, so I thought I better pack it in.
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stupid question
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are you trying to store as a?ÿ observed control point?
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Probably not a stupid question....maybe that's it. Does it only work in Topo shots? I did have it in observed control and didn't bother to change it to Topo for any of them.?ÿ
Observed control shots will disable the tilt correction because of the nature of the software.
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Don't ask me how I learned this.... ???? ???? ?????ÿ
Well that was the quickest solution to a Trimble problem, so far. Lol.?ÿ
The other annoying thing I found is I was trying to shoot a bar up against some prickly ash bushes, it took me a minute just to get in place on the steel monument and as close to levelled up as possible, then shot it for 40 seconds, reset rtk then I had to squeeze back out of the bushes just to reinitialize the IMU and go back in and do it again. I guess that's the nature of how it works, so now way around that.?ÿ
Yeah, I guess I'm not understanding the purpose of observed control point designation either.?ÿ Not only does it disable the IMU but it also apparently locks (but can be disabled) those points so they don't scale in TBC either.
@bstrand?ÿ
they do scale but you have to enable or create a new point after import.
best practice is to save a copy of the raw data, always.o
the raw data is the highest hierarchy.
it preserves the original data sacrosanct, until you tell.it.to dismiss or modify it.
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Well that was the quickest solution to a Trimble problem, so far. Lol.?ÿ
The other annoying thing I found is I was trying to shoot a bar up against some prickly ash bushes, it took me a minute just to get in place on the steel monument and as close to levelled up as possible, then shot it for 40 seconds, reset rtk then I had to squeeze back out of the bushes just to reinitialize the IMU and go back in and do it again. I guess that's the nature of how it works, so now way around that.?ÿ
keep that IMU in motion while shooting the point, so you don??t lose your IMU initialisation. Making small circles with the antenna should be enough movement to keep going. Working with IMU = KEEP IT IN MOTION.
That??s a very nice ???? gift!
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One of the other bars I shot (sticking out of an old stone row) that would have been easy to do, but on this one I moved at all and the tip of the pole instantly slips off and I have to start over. It was just one of those awkward spots, which also made reinitializing after resetting rtk a pain. Plus the IMU loses initialization as soon as you break your lock and I hate shooting anything important without breaking lock and checking it. I was always shooting multiple observations and averaging them but now it's come up that it's forcing my PM to key in coordinates in TBC to run the traverse if I setup the TS on it (a whole new question I haven't posted yet) so I'm trying to limit the point averaging now. I was the only one doing it anyway.?ÿ
But either way, it's another tool in the toolbox that I will use when it will help me. Now that I know it has to be in Topo mode.?ÿ
And yes it was a very nice gift and it worked well once I got it up and going. The old r10 moved on in life to be a base for another crew.?ÿ
@350rocketmike yeah best advice I can give you is turn IMU off when in a multipath environment like canopy. This is what I was told by Trimble rep. The IMU works for topo rapid point stake out. When you select observe control point it gives you the message to make sure you are level before starting the measurement. You can turn imu on and off in the gnss screen. Watch it going in and out of imu. Once you get use to it you will love it. I located some corners that I could not get the rod plumb on so I used my plumb bob string and made shots offset from a couple directions using observe control point method. Then i used the imu and located the I think multiple shots routine i added more epochs and time to the default topo . It was a wash. ?ÿBoth ways landed me more than close enough to the corner. But anytime i do something a little different I usually overkill to prove to myself and the LS its good.
@350rocketmike also make sure you take the time to adjust your bubble on your rod and the led on r12i to all line up and have it facing you as you work and use imu.
@350rocketmike Just name it the same point number and store another. If they bring it into TBC they can merge those points or average enable or disable any bad observation you might miss in field. In access if you have weighted neighborhood and such checked its a weighted average. In TBC I think its a simple average so I usually use all good observations in least squares adjustment etc. Gives more redundancy.
@olemanriver yeah I know what you mean about extra checks when doing something different.?ÿ
It told me excess tilt which hinted to me that IMU wasn't working but I didn't actually realize it wasn't until I tested it.?ÿ
I guess I'm still dragging the bipod through the bush if I'll have to use observed control for the shots in canopy anyway. At least now I have a chance at getting good shots. These things seem to really impress in the woods.?ÿ
@350rocketmike oh i will tell you they are very impressive in canopy. I put it through the ringer. You do need to not just accept the rms precision values in canopy though it can bite you big time. ?ÿBut they are good. ?ÿThey have that new routine for svA svB sv all for that very reason. What I found was if I had 20 plus sats and some of those we??re using L5 it was very reliable and repeatable in canopy. Once it was less than 20 sats or no L5 it was not as reliable or repeatable. I did this over a week at different times on 3 different jobs. And I had good control around the canopy points in the clear and turned rounds with S5 from multiple setups as a check. Had to traverse through a couple because i was so deep in the woods. But I had to find its week spot. ?ÿNo canopy after a brief rain and leaves are wet still. Holly trees and pines were the worst especially when wet. But I guess my LS was correct. He said ok you go in and think and set up ck??s when you know you need to. How do we tell every crew to do that. He is production oriented which is understandable. So procedures are written for that . ?ÿI try and use what little brains i have and say ok worse case scenario what do i need to do. ?ÿTo ensure the data is quality. Have fun. ?ÿThat r12i is actually fun. Once you master it you will take less steps in mapping. Because you can just stab the tip where you want the shot. I shot the top of a storm structure and it was way above my head. I located it by climbing on top and plumbing rod etc. the. Used imu the rod was close to parrelel so way over the 30 degree tilt. 17 hundredths was my worst and that was on a corner that was actually chipped away so i through it out. The rest agrees less than a tenth. And it was not the best gos spot. This was a test as i was just doing a volume certification on a bmp is all. So i had a little fun. It was a probono job for a church so no budget. Just me and a half day of fun.
I did that. Checked the rod the other day and it was still perfect so I did the full IMU calibration and then the e bubble calibration and set it to 8'. It all seemed to work fine for the few hours I used it yesterday. The IMU calibration took about 5 minutes as I'd never done it before but I will definitely keep it calibrated.?ÿ
@350rocketmike you got it. ?ÿI wish I had 10 crew chiefs that would read and solve problems like you are doing. Had one at another company. He would just say I could not use gps the electronic bubble was out would not work. I would say did you calibrate it. He would say no why should i have to why can??t they make it do it itself. ?ÿGood chief but he just was in a spot in life and never cared to learn anything new. ?ÿHe was good at what he was good at. That was it never wanted a gps unit hated them. Talk grid coordinates and he would explode. Why can??t we just assume coordinates we have done it like that forever. But thats the way it goes sometimes. ?ÿYou keep learning and problem solving you must though take some time fore yourself and educate yourself in some books and such and pursue licensure. The profession needs people with your grit and attitude and willingness to learn and figure things out. Keep up the good work.
Thanks I appreciate the nice words. This is the best job I've ever had (some days it's easy to forget that or think the opposite), so I want to put in the effort to learn more and make myself more valuable to the boss. He always appreciates the effort and raises come without ever asking.?ÿ
I have no interest in getting licensed as that means working in the office full time (once your licensed) and it requires going back to school to university for a couple years and I'm not interested in that.
I am happy to spend some personal time researching to try and get better at my job, so I will be able to handle some more complicated legal jobs as needed, besides the majority construction I do.?ÿ
Oh and we had one crew chief that always wanted to use local coords with the TS and then tie into that control with the GPS, when he could just shoot it with the GPS and then set up on the grid coords. The boss seemed extremely frustrated with that.?ÿ
Spent the morning messing with it to finally get it to connect to VRS (finally got it going by switching to rtcm3.2 - then switched back to CMRx and it still worked, not sure what was going on there).?ÿ
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Using the east RTCM32 server was the only way I could get our Carlson system to fix on Cannet.
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Equipment:
-Carlson BRX7
-SurvPC 6.16
-Carlson RT4 tablet
-BRx7_WebUI_0.66.220415A.bin
-BRx7_GNSS_060Aa04a.bin
-Bell SIM in the RT4 or a hotspot (ie. both worked)
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Using a caneast VRS server just produced a base where the distance from rover to base kept changing.?ÿ The rod being stationary was a problem with that ;)?ÿ It would not fix with any of the VRS servers (GPS + GLONASS only or the full constellation ones).?ÿ I just chalked it up to the equipment not being painted yellow and went about my day.
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Have fun with the new toys!
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Our settings in case anyone else running Carlson needs to hop on Cannet (make sure your antenna is hooked up with this setting!). User/pass not shown, but it is pretty straight forward to punch that in (ie. pretty much the same as any other RTN once you have the info from your dealer).
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I got my wife a frying pan and a vacuum cleaner for xmas.
