So the issue is that Cad Software are New, and they have been commercially used since only 10 years or so. Saying that, the maps and designs of existing pipes are drawn on paper and thrown at some garbage or in the corner of the office of a retired (most probably dead) Engineer. So when new projects are being designed and applied, the main problem contractors face is the lack of data and designs, and many surprises that apear on the road, which could increase the cost of the project, and reducing the contactors profit. From here came the idea of a Pipe Tracking Bot, which surveys a pipe from the inside and draws a digital map to the existing pipes underground, thus saving a lot of Time, Effort and Money used to survey the existing pipes the old way.
A detailed discription of all the different steps that were followed to produce the Pipe Surveying Robot are included in the links below.