Watch how drones take on rebar tying tasks
S. Himmelstein | February 27, 2020Manual rebar tying tasks can now give way to a more modern solution: Drones that automate the process for concrete flatwork and other slabs.
The SkyTy solution from SkyMul consists of a control station and a swarm of drones. The swarm size can be varied with the size of the jobs and the schedule for completion. The operator identifies the rebar installation 
Each drone can land, tie and take off independently. Source: SkyMularea that needs tying and a divided section of the work area is then assigned to each drone. After the percentage of ties (50%, 75%, 100%) and the pattern for tying is selected, multiple drones are deployed.
The drones fly over the rebar and identify rebar intersections without using CAD files or programming utilizing computer vision technology. They identify the untied intersection, land, tie and take off toward the next intersection, and each return to the landing station for spool and battery replacement.
After tying completion, the SkyTy control station generates a report of the successful ties for quality control. One trained technician performs the tying job done by multiple rodbusters, freeing up personnel to do other critical tasks for rebar installation.
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How is this more efficient and cost effective than a good crew?
Remember these 3 factors: (1) The rebar has to be laid out in a near perfect grid; assuming there isn't a giant robot doing so, that means crew. If there is a giant robot then, in all likelihood, it has a tieing functionality. (2) Drones require near perfect weather conditions; crew can work in anything short of Noah's deluge or a polar blizzard. (3) Tieing is one of many multiple job steps; generally a good crew can handle all the steps up to and including the pour.
Just because you can doesn't mean you should.
In reply to #2
Agree 100%.
having done that for a few years a long time ago, you have to yank on the bars to get them together (20-60 pounds of force) and then tie it while keeping that pressure on. They don't lay together nicely very often. That is only 40% of the time this is needed but that is a significant force for a 2 pound drone to do properly.
I don't miss that job....