I read that R10 units use an HD-GNSS technology, where as far as i understand, you place yourself somewhere with clear visibility to acquire a point of good fixed accuracy, and then you move along to the point you want to survey, and somehow it uses the tile sensor accelerometer and gyroscopic function to calculate traveled distance and gives you a tolerable solution.
Has anybody had any experience with this and can vouch for it?
I also heard Spectra Precision (Trimble Subsidiary) uses it on some equipment with prices equivalent to R8s
So does this mean you can survey plots solo, even on scenarios with canopies, and obstructions, without needing to supplement with a Robotic TS or not even close?
Besides this technology, and offseting to reach those points, what other methods and procedures are out there
A hard to reach single point or a series of points? The best way to get a hard to reach point is to get a fix, rely on the accelerometer or other gyroscopic device to get the hard spot, then rely on the same to get you a vector to a different good fix. I do not know if anyone has done a test on how long a string of hard spots is doable. I would imagine that one could get better and quicker field results to get 8 good shots off a 4 sided building with 8 laser distances to the corners. You seem to be trying to do all your work with just one piece of equipment when using two cheaper pieces would be better. You seem to lack an understanding off all the survey methods used in the past. Consider a tape and transit survey and building location. Assuming 4 corner monuments found, it is possible to traverse the whole parcel by turning only 4 angles and everything else with tape distance and offsets. It is possible for 2 men and a tape to use less manhours than 1 man and a robot, and the second man can have way less experience and pay.
You can do anything you want any way you want, but the experience only has informative value if you do it, because everyone else has different opinions and values.
Paul in PA
No that is not what HD-GNSS does at all. It's just a GNSS engine.?ÿ
R10 has an inclinometer and compass for tilted pole shots. Maybe this is what is confusing you??ÿ
Leica have a more advanced system (GS18T) that includes an IMU but it will only work with good GPS reception, not for what you are describing.
Some GPS engines can process shots under canopy. The accuracy might be good enough for your purposes?
Or you might be able to use offset shots using a tape? Otherwise it's a total station job.
GNSS is just another tool in the belt. If you are the kind of guy that goes for accuracy over everything else, get everything you can with GPS, then break out the TS, the extra time it takes is worth the trouble in the long run.
I would say no the R10 does not do what you need. It is good in canopy but it often depends on the time of day and where satellites are. But if you can't get it, nothing will seem to force it, believe I've tried.?ÿ
Maybe you are thinking of the X-fill feature which will allow you to get a shot when you lose radio contact. That works really well.
Under canopy it's offsets and/or draw a line with stakeout; drawing a line works well, is very quick and gives you redundant measurements. You can't be wrong when you do it.?ÿ
I still dont understand though how the trimble X-Fill and Leica SmartLink Tehcnologies work? I mean how do they supplement corrections when radio comms are down. What signal does the receiver get and by what means of broadcasting? Is it via the internet
Many moon ago Applanix had a mobile IMU system that worked somewhat like you described.?ÿ A GPS fix was acquired and the the IMU was used to collect data under canopy.?ÿ The system was not that accurate and very expensive, think 6 figures.?ÿ I'm sure the systems have been improved and is most likely similar to what you find in backpack based mobile mapping such as the Pegasus.