Pix4D viDoc RTK on iPhone vs Survey Total Station

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  • เผยแพร่เมื่อ 14 มิ.ย. 2024
  • Check out Pix4D's viDoc RTK - hubs.li/Q016N3PD0
    🖥️ Website: www.tamimi.biz
    👤 Facebook: / tamimibiz
    👕 Survey Shirts - www.SurveyShirts.com
    📸 Instagram: / ramitamimi
    👔 LinkedIn: / ramitamimi
    ✉️ Email: rami@tamimi.biz
    👥 Private Facebook Group: / iamasurveyor
    Download the PIX4Dcatch App: apps.apple.com/us/app/pix4dca...
    Chapters:
    0:00 Intro
    1:15 Project Overview
    3:07 Total Station Data Collection
    6:06 iPhone viDoc RTK Data Collection
    8:57 Data Processing on PIX4Dcloud
    11:49 Extracting Points
    12:42 Comparing Data
    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.
    #iPhoneLiDAR #Pix4D #surveying
  • วิทยาศาสตร์และเทคโนโลยี

ความคิดเห็น • 164

  • @UAS2GIS
    @UAS2GIS 2 ปีที่แล้ว +17

    In 2018, I took a drone mapping class, and the instructors glazed over how the CP data was collected. At the end of the class, I asked myself the question, "What is northing/eating, etc., which started my whole journey down this road. This is insane tech.

    • @TheMuddman74
      @TheMuddman74 2 ปีที่แล้ว

      The "minutes and seconds" to get more precise confused the hell out of me as well.

  • @trollenz
    @trollenz 2 ปีที่แล้ว +5

    Thanks for the metric conversion 👌🏻

    • @RamiTamimi
      @RamiTamimi  2 ปีที่แล้ว +1

      No problem 👍

  • @yaberalij7508
    @yaberalij7508 2 ปีที่แล้ว +1

    as surveyor i apricate and i like the way u explanations too keep up bro

  • @fernandorodriguez-xj9fz
    @fernandorodriguez-xj9fz 2 ปีที่แล้ว +4

    It’s amazing seeing someone so helpful and professional! Great Video! I actually use Pix4Dmapper, I’m gonna tape that iPhone onto a drone:) lol.

    • @ryansweeney7992
      @ryansweeney7992 2 ปีที่แล้ว +1

      You can actually export the RGB images right out of catch and process them in mapper no problem! The results are really awesome

  • @ahmedharon6155
    @ahmedharon6155 2 ปีที่แล้ว +1

    Thanks Rami for sharing knowledge 🙂💙

  • @vincecerna14
    @vincecerna14 2 ปีที่แล้ว +5

    That metric measurements in the end really helped for me ahhaha thank you for that and thank you for the vid.
    Ps. I'm not an IPhone user nor a surveyor. I'm a civil engg. student btw, but that IPhone makes me want to have one hahaha and your vids are really great thanks

  • @EduardoHernandez-du5bk
    @EduardoHernandez-du5bk 2 ปีที่แล้ว +3

    Some time ago I have followed your work and I think the concrete and precise explanations are excellent. I identify a lot with your work since I carry out topographical work with drones and lidar scans. I have supported myself with your knowledge on some topics. I hope you continue to share that knowledge, they contribute a lot.

    • @RamiTamimi
      @RamiTamimi  2 ปีที่แล้ว +1

      Awesome, thank you!

  • @rickpedraza3106
    @rickpedraza3106 2 ปีที่แล้ว

    This thing is STUNNING

  • @luismmatas
    @luismmatas ปีที่แล้ว

    Excellent 👍👍 thank you for this video!!

  • @jimmiekenyon6957
    @jimmiekenyon6957 2 ปีที่แล้ว

    Very sweet, thanks for sharing.

  • @georgeneyra5735
    @georgeneyra5735 2 ปีที่แล้ว +1

    Thanks for do this comparisson Rami, is awesome the lidar technology for Iphone's. Greetings from Perú.

    • @RamiTamimi
      @RamiTamimi  2 ปีที่แล้ว

      Thanks for watching!

  • @fjm4440
    @fjm4440 ปีที่แล้ว

    Great content, as always. Most curious on the specs and brand of laptop you’re using. Thank you!

  • @stacymadd
    @stacymadd ปีที่แล้ว +1

    Great video, just wondering if you could set the RTK to a local uhf freq. this would be all time.

  • @Rogun987
    @Rogun987 4 หลายเดือนก่อน

    The fact you got those tolerances with the backsight after shooting 2 GPS points is impressive. I got a crappy setup and can be out .1 or more

  • @earthcitizen57
    @earthcitizen57 2 ปีที่แล้ว

    Excelent video. Thanks

  • @carliones1
    @carliones1 2 ปีที่แล้ว +2

    Parabéns pelo conteúdo técnico e de alta qualidade.

    • @RamiTamimi
      @RamiTamimi  2 ปีที่แล้ว +2

      Obrigado meu amigo eu realmente aprecio isso

  • @luiz231827
    @luiz231827 2 ปีที่แล้ว

    I love your greetings videos from Mexico. We have the same station total

    • @RamiTamimi
      @RamiTamimi  2 ปีที่แล้ว

      Awesome, thanks for watching!

  • @InspiredScience
    @InspiredScience 2 ปีที่แล้ว +8

    At $6000 for the ViDOC alone (without mobile device), it's priced about the same as Trimble's similar unit (surprising as Trimble is typically triple+ the price of generic devices, lol).
    For clarification -- This is not using RTK, alone, to obtain coordinates. It actually uses the IMU's/photogrammetry to substantially improve accuracy with a concept similar to least-squares (to simplify it).

    • @RamiTamimi
      @RamiTamimi  2 ปีที่แล้ว

      Trimble's device has a similar idea, they're just a competitor to Pix4D.

    • @InspiredScience
      @InspiredScience 2 ปีที่แล้ว

      @@RamiTamimi - Yes, I'm aware, that's why I had mentioned it ;-). There are also two generic alternatives that are thousands less; however, not really on-par with professional "survey grade" gear.
      Although there are benefits because one is a separate software package that is compatible with several different RTK hardware options.

    • @OnTheMountain
      @OnTheMountain 2 ปีที่แล้ว

      @@RamiTamimi Trimble has a "similar piece of hardware" but it is not the same idea, and not used in the same way. I dont think i need to explain tilt comp as im sure you are fully aware of what it is and how it works, but comparing the Iphones IMU application to trimbles tilt IMU is a complete apples to orange comparison.
      Question, with these videos are you attempitng to show that these are cheaper alternatives for RTK rovers + scanners? Or are you merely showing how much more accurate consumer level tech is getting?
      I can definitely agree that the consumers level stuff is getting better and better each year, but i notice with a lot of your videos if anyone even mentions industry standard equipment that you are VERY quick to try and defend the cheaper and objectively less accurate equipment. Just curious on your actual thoughts to this stuff and your actual in field experience with either leica or trimble rovers/total stations in the last 5-7 years.

  • @zebenkopchak1118
    @zebenkopchak1118 2 ปีที่แล้ว +2

    Great to see the evolution of your videos testing the iPhones LIDAR. I wonder if you added a gimbal that could support the weight of the iPhone+RTK if it would further improve the accuracy.

    • @kevinkasp
      @kevinkasp 2 ปีที่แล้ว +1

      I was thinking the same thing.

    • @frasersmith4552
      @frasersmith4552 2 ปีที่แล้ว +3

      He’s already done a video using the DJI gimbal which reduced the drift error, improving accuracy

    • @ryansweeney7992
      @ryansweeney7992 2 ปีที่แล้ว

      It will improve accuracy but you would need a more professional grade gimbal to hold the weight

  • @nicxonpiaso6199
    @nicxonpiaso6199 2 ปีที่แล้ว

    I think your video is too detailed..That's a Surveyors workflow..Really appreciate this!

  • @nplengineerhub
    @nplengineerhub ปีที่แล้ว +1

    Nice informative..

  • @pedrososaparis7325
    @pedrososaparis7325 ปีที่แล้ว

    MUY BUENA EXPLICACION

  • @amirbarmaor
    @amirbarmaor 2 ปีที่แล้ว +1

    You were holding the phone very close to the target object, so I suspect the relatively high accuracy you see is mostly attributed to the GNSS (RTK). It would be interesting to see the result if you repeat the experiment by holding the sensor (phone) further away from the target points (once above and once in a 45-degree angle). The theoretical edge case is holding the phone in zero distance from the target points - in that case, you would expect to get the GNSS accuracy + sensor noise.

  • @aminabdo9760
    @aminabdo9760 2 ปีที่แล้ว +2

    I'm not a fan of iPhones but with the advance surveys you have been demostrating in your recent videos makes me love to have one.
    I think I will order for the pix 4D RTK and the iphone 13 pro for my minor survey where less accuracy is required 😊😊😊

    • @RamiTamimi
      @RamiTamimi  2 ปีที่แล้ว +3

      Yea I'm just like you, Apple has impressed me with the LiDAR sensor and Pix4d with the viDoc RTK

    • @hahost
      @hahost 2 ปีที่แล้ว

      @@RamiTamimi what is cost this solution? Tanks

  • @jac6350
    @jac6350 ปีที่แล้ว

    As usual very useful video. So I've a question ? I see you've made a video where you show us the use of the Dji Osmo with your Iphone to have less vibrations and shakes when you're using the Lidar sensor of yout Iphone. So I wanted to know if it's possible to mount the IPhone attached at the VIDoc RTK Rover on the Dji Osmo Gimbal? Thanks for your attention. Regards. 😎

  • @robotmind792
    @robotmind792 2 ปีที่แล้ว +1

    Amazing

  • @rumhave9632
    @rumhave9632 2 ปีที่แล้ว

    That thing is amazing.

  • @kasc918
    @kasc918 2 ปีที่แล้ว

    super useful, are you able to share the data set?

  • @justingmatthews
    @justingmatthews 2 ปีที่แล้ว +2

    When I saw the the metric table, I thought it was good for the public but mediocre for survey. Then I realised that the delta of 3.99 cm is larger than an inch. Your covert ion is correct for mm. At 3.99 mm that is good damn good!

    • @stacymadd
      @stacymadd ปีที่แล้ว

      His conversion is correct to cm. .107ft = 3.26cm=32mm
      I too thought mediocre for survey.

  • @braddock149
    @braddock149 2 ปีที่แล้ว +1

    You can export all markers at one (annotation export as a CSV).without copying. Well done.

    • @thepeeg2936
      @thepeeg2936 23 วันที่ผ่านมา

      I agree. CSV imports easily into MS excel. And it's easy enough determining which values are N,E, and Z.

  • @northbayride8730
    @northbayride8730 ปีที่แล้ว +2

    How large of a property could you realistically scan by walking around in a grid? 1 acre? Larger? I'm very interested in this for pre-construction planning for my team and would like to be able to walk the site and capture everything. I'm hoping 2 to 4 acres wouldn't be hard for the technology. Would it only be limited by storage space on my phone or ipad?
    Thanks so much for this video, I'm extremely keen to go this route instead of drone mapping for scanning the site and having the team be able to look at it online and be able to take measurements while we are planning the builds. Cheers Rami

  • @tadamb1
    @tadamb1 2 ปีที่แล้ว +1

    Wow. That' pretty slick. I just need to convince my boss why we need one.

    • @trollenz
      @trollenz 2 ปีที่แล้ว +1

      You actually don't

    • @RamiTamimi
      @RamiTamimi  2 ปีที่แล้ว

      Just send him the video haha

  • @anwaralattar1
    @anwaralattar1 2 ปีที่แล้ว +2

    Hi Rami - I got to your channel while I was searching about something related to surveying - and I was really delighted to find its content - I had been working as a professional surveyor for 5 yrs long ago (may be 20 yrs ago) and now I am a full time civil design engineer (roads, highways, grading, stormwater, ..) - I had just one question if you could kindly help: I see announcement for a new GPS receiver Emlid - Reach RS2 which looks good - but I do not know anything about it - is it really good and can be attached to a data logger (I used to work on Trimble SSI that time)

    • @RamiTamimi
      @RamiTamimi  2 ปีที่แล้ว

      I've enjoyed using it. Their accuracy has been constant with other big brand GNSS receivers.

    • @ingedgarv
      @ingedgarv 2 ปีที่แล้ว

      @@RamiTamimi Rami, do you recomment it? i mean, i saw ur video and to me the send u the equipment to test and talk good aboth them, but in realuty the precision is there?

  • @juliomsevillano5576
    @juliomsevillano5576 2 ปีที่แล้ว +6

    Gracias por compartir la experiencia, sin embargo para que lo que comparte en los videos pueda tener más alcance, sugiero colocar subtitulos en español

    • @RamiTamimi
      @RamiTamimi  2 ปีที่แล้ว +7

      Mi plan es crear un nuevo canal con varios idiomas doblados

  • @christwodata1579
    @christwodata1579 2 ปีที่แล้ว

    Thank you for the video. Is it possible to use the RTK in a remote area where there is not internet?

  • @TLTPhotography
    @TLTPhotography 2 ปีที่แล้ว +2

    2000yrs later had me dyin’. Lol

    • @RamiTamimi
      @RamiTamimi  2 ปีที่แล้ว +1

      Hey man, those points take a while to set haha

  • @ivancomrade_
    @ivancomrade_ 2 ปีที่แล้ว

    Can u make a test of circling around the house with garden, big height difference and with the difficult light (harsh light or twilight)? I sure, you will catch a big discrepancy between start and finish points. It'll rotate your trajectory, and won't short-circuit it.

  • @sandraofnick
    @sandraofnick 2 ปีที่แล้ว

    It's very interesting to combine RTK with LiDAR of iPhone.
    The comparison to total station, too.
    But how to make sure of the phase center between RTK and LiDAR?
    There is some kind of system error.
    PS. My advising professor graduate from Ohio State University.
    The campus is very beautiful.

  • @GooGoosDad
    @GooGoosDad ปีที่แล้ว

    Will the NTRIP work for measurements in some rural areas in Bangladesh? Thanks.

  • @bradleycox9953
    @bradleycox9953 2 ปีที่แล้ว

    awesome

  • @danielgoosen2518
    @danielgoosen2518 2 ปีที่แล้ว +1

    Hi Rami. Thank you for the videos. It is really inspiring ideas. As a quantity surveyor working on sites I was wondering if the Iphone can be used to calculate excavation volumes to some extend? This will be very helpful if excavations can just be documented before being backfilled.
    Thank you

    • @niyazituluk1645
      @niyazituluk1645 ปีที่แล้ว

      th-cam.com/video/Kch5XYB1rHg/w-d-xo.html

    • @blain5827
      @blain5827 ปีที่แล้ว

      Yes I’d like to see more on volumetric measurements

  • @traeschell6042
    @traeschell6042 2 ปีที่แล้ว

    Curious as what you would recommend using this for?

  • @azm1azm1azm1
    @azm1azm1azm1 ปีที่แล้ว

    Does the RTK unit on the Mavic 3 Enterprise make a difference with out a base station?

  • @alexanderbruchhaus5984
    @alexanderbruchhaus5984 2 ปีที่แล้ว +4

    Hey. Cool video! Why didn‘t you use the gimbal from previous video? Maybe you can push the accuracy even further✌️

    • @avriljil
      @avriljil 2 ปีที่แล้ว

      I agree

    • @TLTPhotography
      @TLTPhotography 2 ปีที่แล้ว +2

      I’m not sure the gimbal would support the weight of the RTK device and phone… just a thought. Might not be able to grip it well enough either

    • @threedservices6064
      @threedservices6064 2 ปีที่แล้ว +1

      If you have a gimbal that can support the weight of the iPhone/iPad + viDoc, you will generally get better results with a gimbal

    • @alexanderbruchhaus5984
      @alexanderbruchhaus5984 2 ปีที่แล้ว +3

      I agree with you guys. Maybe he will upload a video with a compatible gimbal. I am excited for the results :)

    • @thenerfguru
      @thenerfguru 2 ปีที่แล้ว +1

      I’m not convinced that a gimbal would improve the results. What the gimbal does is improve the iPhone’s ability to track its position in relative to the scene (improves SLAM accuracy). The ViDOC most likely has an even better positional tracking that Apple’s Visual-Inertial Odometry tracking.
      That all being said, it’s worth the test! Also, with any test I see on these video, we only see a sample size of 1 test. We should be seeing the scan of the walkway 3+ times to see if these is variation across captures. I’d like him to walk up and back down the slope. Rotate around spots, etc. this was a limited test that gives us a good idea of the accuracy, but not the full picture.

  • @diegoarmandoyasnotriana8322
    @diegoarmandoyasnotriana8322 ปีที่แล้ว

    Soy de colombia 🇨🇴 es súper la herramienta q sé el iPhone con el sensor LiDAR pero he buscadas la antena RTK pero me comunicaron q para latino América no tienen mercado abierto por licencias q otra antena se puede usar

  • @Earthislife1031
    @Earthislife1031 2 ปีที่แล้ว

    Is there a stand alone app that I can use on android to measure earth curvature?

  • @AbyssalPlain
    @AbyssalPlain 3 หลายเดือนก่อน

    Not sure why you used the point cloud vs. an interpolated mesh to derive the heights of the points in PIX4D...?

  • @felipiverza8879
    @felipiverza8879 16 วันที่ผ่านมา

    About the Dx, Dy, Dz, that 0.130 difference is 1.3 centimeters?

  • @abiez
    @abiez ปีที่แล้ว

    I don't know what I'm watching but he talks about it with such passion. So I just keep ion watching.....!

  • @B1g_Salad
    @B1g_Salad 2 ปีที่แล้ว

    How do I connect to a CORS network in CO? I couldn’t find any information on this

  • @shadisafwan2025
    @shadisafwan2025 2 ปีที่แล้ว

    Hallo Rami
    This is Safwan Massad
    I am in Jacksonville Fl and in 50 county’s in Ga
    Would love to share some information with you
    Great work young man

  • @wodifpv644
    @wodifpv644 2 ปีที่แล้ว

    Will this system work with the Samsung phones that still have the lidar?

  • @AllAboutDrones
    @AllAboutDrones 2 ปีที่แล้ว

    Can I use in Android Samsang S22 pro it has a lidar camera they say

  • @richardoakley8800
    @richardoakley8800 2 ปีที่แล้ว

    With a gnss with rtk i know exactly where the spike is and therefore where I'm measuring.
    Does this clip on think use the top of the antenna as datum
    The top left of the screen
    The top right
    Back ..front.
    Remember I'm use to 7 to 8 mm accuracy

  • @historialchannel88
    @historialchannel88 2 ปีที่แล้ว +1

    Can you have need surveyor

  • @franklynmerinochevez6569
    @franklynmerinochevez6569 ปีที่แล้ว

    WHAT CERTIFICATION WILL BE NEED FOR USE IT IN LATIN AMERICAN COUNTRIES? Pix4D viDoc RTK SAYS ITS NO AFORDABLE FOR NOW

  • @rolandkarlsson7072
    @rolandkarlsson7072 ปีที่แล้ว

    So, I followed the link to the product. And found no price information. I even tried to go to - ORDER NOW. But, then it said - CONTACT US.
    So, what does this nice thing cost?

  • @EVM1978
    @EVM1978 2 ปีที่แล้ว

    Does this integrate with topcon's RTK network?

  • @HamidKhan-dz6mn
    @HamidKhan-dz6mn ปีที่แล้ว

    Hello sir how are you I am Hameed Hun from Pakistan sir what is the price RTK device

  • @aboynamedhsu
    @aboynamedhsu 2 ปีที่แล้ว

    Do you know if the viDoc can be used on a rod for more traditional survey operations? Like staking out? Or is it designed solely to be integrated with the lidar/camera?

    • @ryansweeney7992
      @ryansweeney7992 2 ปีที่แล้ว +1

      Yes and no. There are mounts coming to attach it to a survey rod. You can also use it to take single point measurements. Currently you can’t lay them back out though.

  • @abdallah.alammar
    @abdallah.alammar ปีที่แล้ว

    How did you record the screen of his data collector? any one knows tell us

  • @ArjayMartin
    @ArjayMartin 2 ปีที่แล้ว +2

    can you attach the gps pack and phone in a cheap drone, then get an expensive RTK drone for cheap?

    • @JOFEGUBAN
      @JOFEGUBAN 3 หลายเดือนก่อน +1

      That is a brilliant idea, havent thought of that

    • @ArjayMartin
      @ArjayMartin 3 หลายเดือนก่อน

      Please do it... and compare to a proper RTK Drone? Don't forget to credit me please. Thank you!@@JOFEGUBAN

  • @arliewinters2776
    @arliewinters2776 2 ปีที่แล้ว +1

    The useable distance is like 16 feet...is this correct? I wonder if any plans to extend the working distance ?

    • @ryansweeney7992
      @ryansweeney7992 2 ปีที่แล้ว +1

      That’s the useable distance for LiDAR only. PIX4Dcatch will always process with the images captured so your range essentially becomes whatever you can see in the images (more or less).
      I have catch projects with data well over 500’ away.

  • @wodifpv644
    @wodifpv644 2 ปีที่แล้ว

    Would this work attached to a drone

  • @Diego.ccdm1
    @Diego.ccdm1 2 ปีที่แล้ว +1

    What features does your laptop have for modeling?.. Greetings from Peru

    • @RamiTamimi
      @RamiTamimi  2 ปีที่แล้ว

      Pix4D Cloud is a web based solution, any computer with internet access can use it.

  • @Elfin4
    @Elfin4 2 ปีที่แล้ว

    Could the Lidar be used internally to map concrete soffits to determine deflections of concrete roofs? Would be good to see this in metric mm

    • @RamiTamimi
      @RamiTamimi  2 ปีที่แล้ว +1

      Yes you should be able to do that

    • @Elfin4
      @Elfin4 2 ปีที่แล้ว

      @@RamiTamimi Would you need to set up targets on the wall to act as a datum to ensure ongoing accuracy especially if looking to repeat the exercise over a period to monitor for any progressive deflection

  • @jr3474
    @jr3474 2 ปีที่แล้ว

    Can you connect it to a base and rover, in case your locatuon does not have access to CORS network? Thanks for your videos

    • @ryansweeney7992
      @ryansweeney7992 2 ปีที่แล้ว +2

      You can if your base can output an NTRIP network.

    • @justinwing8689
      @justinwing8689 ปีที่แล้ว

      @@ryansweeney7992 I have the reach RS2 like you do, Rami. Can the RS2 output a Ntrip connection like you are talking about here to connect to the Vidoc?

  • @arquitexplico3890
    @arquitexplico3890 2 ปีที่แล้ว

    Woooow

  • @stableton2580
    @stableton2580 2 ปีที่แล้ว +1

    surveyor here, would love to see this in mm accuracy as im from australia and these numbers mean absolutely nothing to me

    • @RamiTamimi
      @RamiTamimi  2 ปีที่แล้ว

      Corrections at the end of the video are in CM.

  • @onurhanbozkr337
    @onurhanbozkr337 2 ปีที่แล้ว

    Lidar sensor very very good :))) good by GPS :)))

  • @chadisrad2011
    @chadisrad2011 2 ปีที่แล้ว +1

    Is there any way to compare these 2 results with just the iPhone alone?

    • @RamiTamimi
      @RamiTamimi  2 ปีที่แล้ว +2

      We could, obviously the viDoc would be more accurate, that's why I compared it to a Total Station instead.

    • @chadisrad2011
      @chadisrad2011 2 ปีที่แล้ว +2

      @@RamiTamimi Right, makes sense. I would just be curious for a cost/benefit analysis. Your video on using the handheld gimbal showed the benefits were clearly huge for just a $50-$100 purchase. This is more like a $5,000 purchase, so I'm curious if the benefits are still worth the increased cost. Maybe it's way cheaper than a total station, but is it worth spending that much when your phone might be 80% as accurate?

  • @kapacbification
    @kapacbification 2 ปีที่แล้ว

    Интересно конечно, но в лесу и в местах где нет мобильной связи как оно себя поведёт ?

  • @amirliaqatabbasi4000
    @amirliaqatabbasi4000 2 ปีที่แล้ว

    Please tell me RTK intena price

  • @aniruddhadas1232
    @aniruddhadas1232 2 ปีที่แล้ว

    Can this vidoc be connected to any DGPS base station ?

  • @zaidghaben4943
    @zaidghaben4943 2 ปีที่แล้ว

    Rami can you get Zakzok on a video?

  • @reveszpeter2325
    @reveszpeter2325 2 ปีที่แล้ว

    Hello Rami,
    What if you lose gps signal while measuring?

    • @RamiTamimi
      @RamiTamimi  2 ปีที่แล้ว +2

      If you lose RTK lock, then your data will not receive corrections. At this point I would say you need to depend on GCPs to correct your data.

    • @justinwing8689
      @justinwing8689 ปีที่แล้ว

      @@RamiTamimi To piggy-back on this question: I understand you would need to use GCP’s if you lose fix. But will the scan be able to continue or will it stop when it loses fix? I’m wondering if I do a drone survey but want to supplement some areas that are obscured by tree cover with the vidoc/iPhone setup. Walking around under the trees to supplement you would be likely to lose fix. Do you think this would work for the scenario I’ve outlined?

  • @enriquepacheco-vt6sl
    @enriquepacheco-vt6sl 4 หลายเดือนก่อน

    It is better than a Phamtom 4 RTK??

    • @RamiTamimi
      @RamiTamimi  4 หลายเดือนก่อน

      Phantom 4 is a drone, this is a hand held system. They're apples and oranges to compare.

  • @BUBBACHUKA
    @BUBBACHUKA 2 ปีที่แล้ว

    Rami.....great vid...... However, If I were OSU, i'd have you out there with a wire brush.....Pk (With ribbon ) AND PAINT....wtf......every point was at a joint, like you weren't going to be able to find it?

  • @dior1992
    @dior1992 2 ปีที่แล้ว +1

    Please try iphone RTK with gimbal 😅

    • @RamiTamimi
      @RamiTamimi  2 ปีที่แล้ว

      Might need a stronger gimbal to handle the weigh

  • @FreeStyleSloth
    @FreeStyleSloth 2 ปีที่แล้ว +3

    For the price tag ($5000 USD+), would it not be cheaper to just buy a drone w/ RTK, a todal station, and camera?

    • @trollenz
      @trollenz 2 ปีที่แล้ว +1

      It's always the same, they put a $100 ublox chip in a plastic container, add a $50 helical antenna, write a couple of lines of code and retail for $5000
      When you bought for $10000 a Novatel receiver board in the past, everything was developed in house by hundreds of engineers, tested, developed, improved for ages... I still don't get it.

    • @RamiTamimi
      @RamiTamimi  2 ปีที่แล้ว

      It's just another tool in the tool kit.

  • @McCezex
    @McCezex ปีที่แล้ว

    What’s the cost, where to buy it?!

    • @pix4d
      @pix4d ปีที่แล้ว

      Where are you based?

  • @andrewgibson4807
    @andrewgibson4807 2 ปีที่แล้ว +4

    Why place a nail with flagging and put paint around it? You've totally defaced that nice ramp. Flagging ( a lot less btw as to not interfere with your photogrammetry) would have been enough, and removable post survey.

    • @mdolan900
      @mdolan900 2 ปีที่แล้ว +2

      Funny you should say that.. a few months ago I did a topo survey on the ASU campus and started off by setting a bunch of mag nails with flagging in concrete/paver joints around campus for temporary/topo control. Maintenance crews came around after us and ripped all the flagging out, pulling some of the nails out with it. I didn't put any paint around the nails but they did NOT like the flagging. I just switched to small marker 'X'es which will have faded away by now. The campus folks really do care about the care and appearance of the grounds.

  • @AndreaFiorini1974
    @AndreaFiorini1974 2 ปีที่แล้ว

    Nice. How much is it? There is no price on the website!

    • @trollenz
      @trollenz 2 ปีที่แล้ว

      USD 6000

    • @trollenz
      @trollenz 2 ปีที่แล้ว

      iPhone not included

    • @AndreaFiorini1974
      @AndreaFiorini1974 2 ปีที่แล้ว

      @@trollenz 5.460,00 euro????? :))))

    • @trollenz
      @trollenz 2 ปีที่แล้ว

      @@AndreaFiorini1974 Usually when the price is around "consult us" euros, it smells pretty bad already 🤣🤣

    • @trollenz
      @trollenz 2 ปีที่แล้ว +2

      For iPhone 12 pro : 5388 €
      For iPhone 12 Max : 6588 €
      For iPad Pro 11" 2020 : 6588 €
      VAT included

  • @PISQUEFrancis
    @PISQUEFrancis 2 ปีที่แล้ว

    I SEE YOU used N, E, Z, instead of E,N,Z.
    I know a lot of surveyors that used E,N,Z, because of how software was written, back in the mid 70's. I had fully expected you to present E, N, Z(which to me is Blasphemous)
    Are students being taught to present coordinates, one way or the other?

    • @RamiTamimi
      @RamiTamimi  2 ปีที่แล้ว +1

      It really doesn't matter, in the US we display the Northing (Y) first. The important thing I teach my students is to understand the terms and what they mean.

  • @fsn8615
    @fsn8615 2 ปีที่แล้ว

    should do with a check point, take a random point and measure on the iphone and then with the station or GNSS, that is, do the opposite.

    • @RamiTamimi
      @RamiTamimi  2 ปีที่แล้ว

      All of these points were check points, I did not georeference them for adjustment.

  • @bryanhill1406
    @bryanhill1406 2 ปีที่แล้ว

    Maybe buy a bipod, if you want to measure accurately.

  • @BradimusMaximus78
    @BradimusMaximus78 2 ปีที่แล้ว

    Sounds like hocus pocus to me

  • @diegohurtado9854
    @diegohurtado9854 2 ปีที่แล้ว

    Spanish subtitles please

  • @armorer1984
    @armorer1984 5 หลายเดือนก่อน

    Our testing was a radically different story. Totally hit-or-miss on accuracy. Precision was God-awful.
    Error was reported to be 8mm. Actual error when validated with a 1" optical total station was 10.61 inches. No bueno.
    I wouldn't trust it any further than I can throw it after our testing. I'm curious how many takes it took to make this video with this low of an error.

  • @davidkierzkowski
    @davidkierzkowski ปีที่แล้ว

    Look like the largest elevation change In the entire state of Ohio

  • @ArjayMartin
    @ArjayMartin 2 ปีที่แล้ว

    do surveyors get brain cancer more than average with the GPS stuff all day?

  • @McCezex
    @McCezex ปีที่แล้ว

    “Contact us”? Is it a joke?

  • @Bantammenace1903
    @Bantammenace1903 2 ปีที่แล้ว +1

    It's refreshing not to see Leica or Trimble equipment being used. Keep up the good work.

  • @alwaystravelling100
    @alwaystravelling100 ปีที่แล้ว +1

    VI-DOC. There is no A in the name!!! Annoying that you misname the product!!

  • @nicholashpitts
    @nicholashpitts ปีที่แล้ว

    Earth is flat

  • @mohammad.ghazawneh
    @mohammad.ghazawneh 11 หลายเดือนก่อน

    Great work, how can i contact you Mr. Rami

  • @Irwansyah86
    @Irwansyah86 2 ปีที่แล้ว

    Amazing