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Examples include pipe penetrating radar, sonar, CCTV, LIDAR, side-scan etc. Read https://trenchlesstechnology.com/advancements-in-multi-sensor-inspection-technologies-for-large-diameter-sewers/
Vendors of equipment and software include:
https://sewervue.com/multi-sensor-pipe-inspection-system.html
https://redzone.com/nr/multi-sensor-inspection-msi-sewers/
The requirement is a little vague. More specification will be required to understand what data needs to be supported and what viewers are required for the inspection output
