OK, I have been using the BR2 professionally for quite some time now and performed inspection of a sunken boat in harsh ocean conditions and I have inspected more that 7000 meters of pipeline from -1 to - 60 meters in open water conditions, drill rig anchor lines in fjord conditions, fish farm anchor lines, 7000 m^2 seabed survey, internal pipe inspection through a 225m long inlet pipe, inspection inside a hydra plant tunnel and more to it.
I would say that the little worrier BR2 really stands out like true piece of professional kit. BUT, I want more ! I think that this product is too good to just be a camera (great camera the new low light!!)
Guys you HAVE to take this to the next level, this is just too good to be a simple underwater observation drone… I have some thoughts of what I miss in order to make the best small ROV even better, and turn it into a tool package. It will off course be a “new” model based on the same proven technology.
Balance and GOG:
When operating at some depth and current the ROV tilts nose when going down vertically because of the tether drag. I the tether is mounted on top, the nose will pull up due to tether drag when going fwd. A way to reduce this is to make the ROV slight larger and heavier adding larger vertical stability and decrease the tilt momentum created by the tether. This will also allow for more smooth operation of the ROV.
Normally I do all the fine maneuvering on 25% gain, but if current and tether drag gets the best of it I have to go to 50%. That is fine for straight flying, but when stopping for closer inspection and trying to rotate etc, the ROV moves to quick, and at the same time, I cannot go down to 25% as the current will pull me off. In summary, a larger and heavier ROV (open to allow water flow through) would give more stability and smoother operation. I
m thinking closer to 30Kgs then 20.
Control of video:
I know this is being worked on already but here is a big area for improvement for bringing the BR2 to the next level. As of now I use a screen recorder to record the video to get the OSD to show on the product. The screen recorder also inputs text and time/date on the video. The trouble is now that cannot do anything on the computer as this will show in the inspection video (Editing after is extra work, time and money)
The ability to receive signals from several cameras and split the signals to separate screens would be a great benefit and a great tool. The QGC should be a control page that acts as video matrix that sends the video links to the different ports. You would then choose from QGC which camera to record - including OSD.
The option to add extra lights, motors, manipulator/grabber, pump, or other instruments and control them from QGC would be awesome. As of now, when I use the acoustic positioning system, the transponder gets power from the ROV as soon as I turn it on. (not good for the transponder to be on in air)
Lets go with the idea that the ROV i built larger as suggested, adding a pan tilt, zoom? camera would mean a world of difference in some tasks. Imaging controlling this from a menu in QGC.
Or a grabber of 5F manip, powered on/off and controlled from QGC ( manip controlled via extra joystick but interfaced through QGC)
When going deep or going where there is current, or both at the same time, is a true challenge for small ROV
s as the tether drag takes over. To have the tether reel sub sea and able to pay in and out would mean the world in difference. Imaging power and signal umbilical coming from the surface, down to the reel, The tether-reel being heavy enough the hang more or less straight straight down. This means a short tether to the ROV with less drag. The TMS existing in the marked today is very expensive and mostly exists for larger "professional" ROVs. But I see and read so many clever people in here that Im sure someone could come up with a brilliant idea for this. My current solution is a “heavy” shackle connected to the umbilical 25m back from the ROV to account for the tether drag, but I know what I would prefer
Two function grabber or a simple manip:
is MUST have. I know there are several small brappers out there, but can they be easily hooked up to the BR2 for power and controls?
I know I am asking for the moon but miracles have happend before