Sensor fusion case study

SINGAPORE - Quality assurance is crucial to construction projects to ensure quality and safety.

In this case study, we visit the deployment of a wall inspection robot by the Building and Construction Authority (BCA) of Singapore, where it is used to scan for structural defects in newly constructed buildings.

In this deployment, lighting may be an issue as new construction projects may not have its wiring works complete - thus resulting in low/no light environments.

Conventional robots that rely on single cameras (RGBD for example) would then face issues as navigational tasks would be interrupted with the absence of light to navigate. With sensor fusion, alternative sensors (such as LiDARs) would be utilised as an alternative, and robotic tasks can resume without risks of tasks ignored due to environmental/setting factors.

With the deployment of this robot, quality checking can be done consistently and with increased frequency, while more complex tasks can be focussed on by construction workers.