QA/QC operators have long experiences in manufacturing, but are often more
or less selflearned in the use of surveying instruments. For most surveying
specialists the situation is quite opposite. They are experienced concer-
ning measuring technics while their knowledge of manufacturing may be rather
poor. Unfortunately, this too often leads to serious misunderstandings due
to the terminology. This may at worst lead to the conclusion that a speci-
fic technique is unsuitable.
In addition to a minimum of human communication, some demands have to be set
to the measuring techniques, such as:
- Field work should not delay the production.
- Results should be reported before the next step of the production, so that
errors may be corrected.
- Total time consumption must be competitive compared to other methods.
— Presentation of results should be easily understood.
- Accuracy of the measurement should be stated.
- Know-how should be easily available during planning and execution.
Most of the photogrammetric measurements carried out at shipyards have been
"as built" tasks, and improvisation has been an important part of the pro-
cess. If the time needed for field work is analysed, the reason why photo-
grammetric solutions often are isolated experiences, may be understood. The
following activities have to be carried out for every project:
- The geometry of the object must be studied
— The photographing plan must be worked out
— Accuracy must be estimated
- Every measuring point must be selected and localized, targets must be
fixed, and nominal co-ordinates found
- Control points must be pointed out, targetted and surveyed
- The photographing have to be carried out according to the plan
By integrating the technique to the QA/QC program at the shipyard, photo-
grammetry should be far more effective. That is some of the intentions
by the project "FOMAKON".
THE "FOMAKON" PROJECT
"FOMAKON" is a research program running at the Norwegian Institute of Tech-
nology, Division of Marine System Design and Division of Geodesy and Photo-
grammetry, in cooperation with two large Norwegian shipyards, A/S Fredriks-
stad mek. Verksted and Stord Verft A/S. The research program has been run-
ning since 1979.
The aim of the project has been to develope a system for photogrammetric
measurements and checking, satisfying the specific requirements met at ship-
yards. The system should be powerful and flexible, and it should cover
most of the interesting measuring tasks. Implementation should be possible
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