RTK GPS/GNSS with Base and Rover
ฝัง
- เผยแพร่เมื่อ 31 พ.ค. 2024
- Check Emlid Reach receivers - store.emlid.com/rami
Today, we will go over the concept of RTK positioning. By utilize two GNSS Receivers, we can configure them to be a Base and Rover in order to observe high accuracy positioning.
Chapters:
0:00 Intro
0:16 What is RTK
2:23 Setting up the Base and Rover
5:45 Connecting the Base and Rover
8:48 Different types of Solutions
10:07 Data Collection
11:22 Outro
Join me on Social Media:
🖥️ Website: www.tamimi.biz
👥 Private Facebook Group: / iamasurveyor
👕 Survey Shirts - www.SurveyShirts.com
📸 Instagram: / ramitamimi
👔 LinkedIn: / ramitamimi
✉️ Email: rami@tamimi.biz
About Professor Rami Tamimi:
Rami Tamimi is an American doctorate student at The Ohio State University working towards his Doctor of Philosophy in Geodetic Engineering. With over 8 years of experience in the Land Development Industry, his experience revolves around traditional field surveying, civil design work using AutoCAD Civil 3D, and geospatial technology including LiDAR, SONOR, and Photogrammetric data acquisition and processing with the use of Unmanned Aircraft Systems or Drones. He is also a University Professor and creates instructional video content on TH-cam.
#RTK #BaseRover #GNSS - วิทยาศาสตร์และเทคโนโลยี
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Thank you for sharing this much information in this video. I really appreciate it
Great video! You did an excellent job both explaining and demonstrating RTK.
Your explanation is so clear and very proper way of explaining
Thank you SO much for describing the difference between single, float, and fix. This was a great video for a new user like me with the Emlid Reach units. We are connecting via bluetooth but this was so helpful to get me going. Thanks!
RAMI knows better what we need in surveying. Thanks RAMI
Very informative video on RTK survey. Good job Rami.
I love how he has RTK merch!!! Yessss! I am here because I work in Automotive DAQ hardware and need to learn more about RTK and how they could work together
Please keep making videos about GNSS, I'm from Chile and you've helped me so much!
Yes of course, more GNSS videos coming soon!
Buena weon.
Thank you man. It really helped me. I hope you have good time.
Thanks to your video, I was finally able to understand this topic. Thanks a lot. Very well explained
Hi , i'm from México and i have those receivers, have an amazing performance for land survey ! Good videos , thanks for share your job ✌️
Glad you’re enjoying it!
Bien compris
saludos quería preguntarte que precisiones alcanzaste con esos equipos
@@alamantalvar alcanzo una buena precisión, H=0.01 y V=0.014, lo que normalmente da cualquier receptor GNSS! Sobretodo los de doble banda
Great video. In the last video you briefly talked about fixed gnss reference points accessible to the public. In a future video can you expand on this subject?
great video, it answered me very clearly what I needed to know, thanks!
Hi, i just discovered your channel and i love it, im from Chile, thanks for share your job
Thank you for these videos, I graduate this year with a degree In GIS/Geomatics. Your videos reinforce my studies, they are not to elementary and not to complicated… great job
Thanks for the feedback!! Yes, I want to create content that is educational but also practical.
thank you for video, it was a great explanation.
Beautiful explain.
Thanks sir ❤
Hello Rami! Loving the videos keep up the great work! Could you do video or explain the process of connecting the base to the satellite network?
Thank you for beautiful channel.!
Great video!
Awesome video sir👍
Good day,
What was the maximum achievable distance between LoRa transivers during successful RTCM3 corrections forwarding with LoRa (8:36) ?
Regards,
AB
Great Video!
Awesome film, all stuff explained really well. Can You make a video about stocktaking any tracks or craneways? All the best, keep on filming
Thanks full of knowledge
Hi Rami, We normally input local GRID coordinates for the base station. Rover measures local GRID coordinates as well. Would you use Geographical (Lat, Lon) much? Thanks.
Awesome video... I really like your videos. Thanks bro . May Allah bless you ♥️♥️♥️
Hi Rami, is the radio connection between the base and the rover can through a dense vegetation or a building. I’ve noticed that he rover lost the fix green each time there is something in between the two recievers.
Finally a good explanation, and he gets 50k more views than one of the big suppliers.
Nice video it really help me. I’m just wondering if we have a base and a rover set up, is it still necessary to have a p4pro with the rtk module or not ?
Great video Rami. You may need to explain a little more where you get the ellipsoidal height for your base.
Of course there is more to say, so much to say in the world of geodesy. Thanks for you support!
Obrigado pelo conteúdo
@Hey Rami. I notice your using the Emlid GNSS receivers. I wanted to know what do you think of them compared to older brands like Topcon, Trimble and Leica. Is the Emlid better or why would the other brands be better or not?
Hello Mr., I'm very interested in this method. I am very curious how the images of this method are measured. Can it be displayed. Thank you
ما شاء الله لا قوة إلا بالله
زادك الله علما نافعا
معلومات جميلة و ممتعة
الله يبارك فيك شكرا يا غالي
Hello from Greece, nice video! In this setup (Base+Rover RTK), can we collect points with the Rover being very near to a building, under balcony or vegetation? Is it necessary for the Rover to have clear visibility of the sky and the satellites OR it gets its coordinates from the Base only using radio signals ??? Thanks a lot!
Great videos. You should contract with Emlid to prepare all of their instructional materials because their stuff is just dismal. I noticed you were using Emlid RS+ units in the last video and these are the RS2. Is there a noticeable difference between the two models when trying to establish a fix? I am currently wrestling with a pair of RS+ units that are supposed to replace the tapes and builders level that I have been using to do site measurements and stake outs.
I have some concerns regarding the measurement of base station antenna height. You were measuring without installing the receiver on the tribrach. Doesn't the antenna reference point make sense? Shouldn't we measure the antenna height from phase of antenna?
Hi, if I have not known point for Base. For example If I have to survey or topography in area where there is no known gcp point, how I can start. I have base and rover setup same like in this video.
Regards.
so what do you do if your base coordinates were not given in lat or long, but easting and northing per NAD83 Texas State Planes North Central Zone?
Where can I buy that Tribrach with the adapter and extension pole? Exactly what you showing on the video?
Good vdo thank you very much
Sir, Does the distinction between Atena's heigh and known point heigh cause the error?
How far from the base can you go with the rover while it still RTK Fixed?. Also, I wanted to know if you can extend it using an external radio
Can you inverse between points and can you cogo points in direction?
I’m interested in this product. Do I have to use the app or can I use it with my existing data collector set up (Microsurvey field genius)?
Please explain what to do when you do not have any initial point with known coordinates.
Love From Bangladesh ❤️
Much love!!
Thank you.
Hi Rami, are you familiar with Sokkia Fusion technology? I’m having trouble making it work the way it’s supposed to.
What a nice introduction on the setup!
I have a question regarding disturbances. Since you have a relative position to the base station, does this allow you to have a better fix with heavy obstructions overhead? For example under an overpass or similar.
Not really, both the rover and the base are observing satellites, so if either one of them is obstructed, you will not have a fixed solution.
how do you determine the lattitude and altitude of base with high accuracy? i suppose the value you can read from google map is not that accurate because it is based on GPS which has an error of meters.
Love the video… 9:35 👀
I am looking for a very simple but accurate way to measure irregular shaped yards for square footage. Any Suggestions?
منتظرين على احر من الجمر مقطع كله فوائد و معرفة ⏳⏳⏳
هههههه، إن شاء الله يكون عجبك الفيديو 👍🏽
@@RamiTamimi
جدا مميز و مبسط و شامل
و بإذن الله تصبح عملاقا في مجالك
Where have you been all my life??!!!!....Thanks a lot Sir
Rami love your channel. I am new to surveying. I just go into the surveyors unions out in NYC. I start my CST class in October. I have a question about this particular setup I will try to make it not sound so confusing. I work for a construction company. We currently sun out all the survey work, they get the plans from the engineers and then they lay out the job site with a total station. I have a set of plans for myself and I use an automatic level to shoot grades they lay out for me. On the plans they have a section that has all known points and traverses with elevations, coordinates etc. if I were to get this particular unit you use and I set up the base station on known points, input the coordinates will I at least have the correct elevations? I know that I won’t have the layout of the job on there but at least having the elevations will help so I can walk the job site and check elevations on the road, manhole castings etc. it would be easier then setting up a level, and trying to mathematically figure out the elevations. Second question. Is there a way to import the engineers layout onto the app so I could layout a job site (drainage manholes, curb sidewalk etc) using this unit instead of a total station? Hope I didn’t confuse you.
Good Information
God bless 🙌 bro
Thank you
Great video! How can we leverage this to exchange points with our Revit and Navisworks models?
Hi Rami,
I have two RS-2 (base and rover). My question is which is optimal connection between the base and rover. With my Base connection via MiFi (stationary) would you suggest the rover to use a sim card, LoRan or ??. I'm new to all of this and have sunk a few $$ in the equipment and want to get the best out of my investment.
what if i don't know the base coordinates? I use the average single to determine the base coordinates when i don't have it, but when i change the base position and observe the same point i already took with the base in that first position it doesn't match. Help me Rami please
Hi, can the emlid reach R2 or R3 base and rover Proform cogo functions.
Can you change datums or does it have options to have a project localized ? Oh and by the way great video.
Hello there Rami. I am Jon from the Philippines. Which would you recommend, Reach RS2 or South Galaxy G7? Your reply would be very much appreciated. Thanks in advance.
Hello, thanks for the video. Can you talk about the different GNSS equipments. There are some equipment with include a inclinometer for messaging corners of houses. Some of them can messaging above trees, electric lines, etc. Can you explain how good are it and your opinion. I would like to buy a equipment but I don't know with one. I do boundaries, mortgage surveys, topo surveys and stake out, using total station, but I need something faster for working. Thanks. You do very good videos.
Kindly ,, I need how I can use the localization option in GPS Sokkia GRX3 ??
Hi ! I am a Professional Civil Engineer from Taiwan. Your video will let more people learning surveying technique! Good job!
Hello, thanks to share all your knowledge! if there is no known point near the place we have to survey, how create a georeferenced landmark with the reach?
Depending on your location, you might find a geo-referenced point from hydrology department of your area, land survey companies near your location or a GTS benchmark. You can then use the baseline transfer to geo-reference your nearby point from the already existing geo-referenced point ( legs of transfer depend on the distance between both the points)
Try searching for " CORS" (Continuously Operating Reference Stations, run by local government agencies)
فيديوهات رائعة رامي استمر ..
ما هو تقييمك لمنتجات EMLID ودقتها للتوقيع والرفع ، وماذا لو قارناها بغيرها من اجهزة GPS كلايكا وتوبكون مثلا ، رأيك يهمني جدا ارجو الرد اخي رامي .
عملك وشرحك رائع شكرا جزيلا لك .
Hi everyone! Any one can give me advice on where to start if we like to establish a national coordinate system? and also what can be alternative ways to measure coordinate - so we can establish a place for the base station.
Waiting!
We are live 🔴
Great video! However, will the base lose its mobile connection when you're out in the field collecting coordinates with the rover? Basically will the hotspot range be a limitation, unless you have two smartphones to leave with the base and one to collect data on the rover?
Good day. With these receivers, the base will not be transmitting corrections via wifi. The corrections will be transmitted via built-in uhf radio (Lo-Ra) or the internet. If the latter is used then both the base & rover will need 2 separate connections to the internet. So the short answer is no - the hotspot range will not be a limitation
Ok, so this means that there is no need for the expensive correctionsignals compared to only using one GNSS receiver... did I get it right?
I would love to try the ones you are using
Can use multiple bases with one rover, as the rover may be obscured by obstruction to the line of sight between rover and base but possibly visible to another base?
In addition, if the rover loses connection with the base what happens to the accuracy of the rover? does it just revert to the satellites GPS position
Can i measure elevation of the building from sea level ?
Is it possible to messure without without seeing the base?
For example in the back of a building
And second question
Is the rover and base able to messure in a case rover has no connection to satalite?
Maybe to get the hight of first floor in a building?
Did you create that point using OPUS or did you use traditional survey methods?
Do you have a video explaining WGSxxxx ?
Thanks.
Hi Rami, thanks for the video. I am curious, when you set up at a completely unknown place with no reference points, how do you calibrate your instrument?
The point will have to be calibrated from a known point either by observing a known point nearby or connecting to a network of receiver(s) such as VRS or NTRIP.
what's the best gps to get for a rover now?
Great Videos! Did you have the know point info and convert it to WGS 84. On your rover points I noticed you mentioned WGS 84. The output would always be in relation to the system used as the Base coordinates correct? Thanks for the help in advance.
I kept my project in WGS84, I didn't want to confuse my international audience with North American Coordinate systems. You are able to input whatever coordinates system you want for your base station.
فيديو رائع ومعلومات مفيدة رامي . نفتخر بك وبانتظار المزيد . 👏👏👏
شكرا يا حبيبي ندل 🤗
Could you please make a video of emlid base and rover, determining it's precision over a point.
Ie record record one point several times under different weather conditions and different times of the day.
And show us it's consistency
I will be grateful
Hi Rami, I’m wondering if you can help this enthusiast understand how you find the exact coordinates for a point for the base station or a total station when needed. It seems to me many total station operations you need exact coordinates of a point and for the base station you also need exact coordinates. It seems to me it’s a bit like the chicken and the egg situation. How do you find that exact coordinates of that first point? I’m from the U.K. not the US if that changes anything.
Thank you.
Most governments have an open data portal or map where you can normally activate and deactivate layers, there should be all points (at least that one from the governments). Have a look for example in www data gov uk (urls do not work in yt), sometimes it also helps to go for a city data portal - or just ask a local surveyor
These were existing coordinates that you can find from different surveying agencies or the government.
Can you go over logging when you don’t have a known gps point and correcting base location through opus?
Yes of course, stay tuned!
@@RamiTamimi 1+ Yes Pleas!! :D
@@xavierfernandez3376 What is opus? I'm interrested
Wow Sir its nice video i salute you sir for job well done it is very informative a new technique. we you equipment in project sir slope protection as of I am company using total station in as stake survey road works and slope protection in the philippones
Hi Rami, is there available free apps for SinoGNSS? Thank you and more power to your channel!
My rtk points I took on site shifted. I have known coordinates and have done everything possible but the issue still persist.
How to setup (Hi- survey RTK. ) Please help
I have the previous version the Reach RS plus and the only time I ever got a fixed solution. Doesn’t matter how sunny it can be. Also one of the units is faulty because it disconnects from the Bluetooth
Hi Jonathan,
Besides weather, different factors might affect receiving a FIX solution-for example, environmental conditions, baseline, workflow, setup, etc.
If you have any issues with getting FIX or Bluetooth connection, feel free to contact us at support@emlid.com. We’ll try to help you.
Awesome video! About to purchase the emlid reach RS2 system base and rover. Going to use it to position grades and elevations (cut /fill) of houses for excavation sites. ( I own a excavation company). Just wondering if you know if you can offset points, radius curves, and slope staking with reachview 3; or if I would have to get a data collection software like FieldGenius? Would I need Microsurvey software too? Would be interesting to know how far down the rabbit hole I need to go. Also, it would be nice to upload the civil engineers plans onto a project so I can survey the site.
We are looking to do the same thing. I just pulled the trigger on 2 RS2 units and FieldGenius today. Hope your process is going well. We do sitework and road striping in Hawaii.
@@kulagabe hows FG going for you? I sent it and bought a Carlson tablet, so running there software because it was recommended to my by the local surveyors.
@@zacbaxter We just set it up today and plan to go and shoot some points we will be excavating for a large retaining wall. It should be a good test to see if we can easy find know points once we have some for reference.
nice can yuo send the video how to calcolate earth work volume using rtk GNSS
Nice video.
What is the name of the app in the android smart phone please
Useful thanks.
Can you introduce me a site that have completely learning survey equipments?
Thanks
I’m struggling to understand just one thing… How could you know the coordenate of this point that you setup your base station if you “rent or buy” the RTK just for that reason? In my case i picked up some points using a total station, so the only reason im renting an RTK GPS is to reference a materialized point that i used as a base point for the total station.
I know that in someplaces you have a geodesic mark, a fisical mark, that has already known coordinates. But in a case that you don’t have this, can you just set up your base station anywhere you want and start yours measurements? I hope you understand my question, English is not my home language 😂 thanks for now
What if you use only rover without base what accuracy you may get as I have seen on sites they v been using only rover to mark foundations which apparently will take you to 20 mm +/-
Without a base, the rover acts as DGPS receiver ( thus giving you DGPS level accuracy ). To get precise millimetre level accuracy, RTK is preferred ( i.e. with a base )
Dear Engr, I have a problem with my leica Gps GS16.first time I facing like this problem.
My GS16 Gps giving more error in easting/northing value of a adjusted traverse by total station.
This error increase by distance. If I measure point near (approximately 100 me.) By base receiver than I get same value. Means no error but after that if I measure points 500,800 mtrs or more far from my base station than gps error also increase.
Can u solve my problem.
Plzzzzzzzz