Omnidirectional Sensor Cluster for Hostile Environment Inspection
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Solution Overview
Problem
Current methods for visual inspection of hostile environments, such as high-temperature furnaces, are limited by short camera survival times, restricted viewing angles, and mechanical component deterioration, making it difficult to obtain detailed and comprehensive data for maintenance and repair decisions without interfering with production.
Innovation Solution
A device with a plurality of sensors arranged in a three-dimensional cluster, capable of producing an omnidirectional spherical image covering over 80% of 4π steradians, which can be used to create a 3D reconstruction of the environment, allowing for real-time or deferred viewing and analysis, using visible, infrared, UV, or thermographic imaging, and processed for detailed inspection and maintenance planning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If a camera is used with a cooling system to protect it from high temperatures, then the camera can survive longer in hostile environments, but the survival time is still limited and the inspection time is extremely short
Solution Approach 1:
The inspection system is divided into multiple fixed cameras positioned at different locations within the furnace, each capturing a specific zone. This segmentation allows simultaneous inspection of multiple areas without requiring a single camera to move or remain in the hostile environment for extended periods, thus reducing the time each camera is exposed to high temperatures while maintaining comprehensive inspection coverage.
Solution Approach 2:
A reflective surface or mirror system is introduced as an intermediary to redirect light from the furnace interior to the cameras positioned outside or at the periphery of the hostile environment. This allows cameras to capture images of the furnace interior without being directly exposed to the harshest conditions, extending their operational lifespan while maintaining inspection capability.
2Adaptability or versatility
If a movable camera system (robot or PTZ) is used to direct the camera to look for faults, then the field of view can be adjusted, but the mechanical components deteriorate due to high temperatures and the inspection time is extended
Solution Approach 1:
The movable mechanical components (robots, PTZ mechanisms) are completely removed from the hostile environment. Instead, multiple fixed cameras with wide-angle or panoramic lenses are installed at strategic positions within the furnace, eliminating mechanical parts that would deteriorate from heat exposure while maintaining comprehensive viewing capability through proper camera placement and lens selection.
Solution Approach 2:
The system transitions from a single-camera three-dimensional viewing approach to a multi-camera two-dimensional array that collectively captures the entire furnace interior. This dimensional shift from vertical/movable inspection to horizontal/distributed static inspection eliminates mechanical movement requirements while achieving complete coverage through coordinated multiple fixed perspectives.
3Measurement precision
If conventional cameras with limited viewing angles are used during non-operational intervals, then inspections can be performed, but the inspection time is short and production cycles cannot be interrupted
Solution Approach 1:
The inspection system is designed to operate continuously during normal production cycles without requiring shutdowns. Multiple fixed cameras capture images of the furnace interior during operational intervals, allowing inspection activities to proceed continuously alongside production, thereby maintaining productivity while achieving detailed inspection through the coordinated views from multiple camera positions.
4Loss of information
If a camera remains in the furnace for a longer period to collect detailed data, then more comprehensive information can be obtained, but the camera cannot withstand the temperature even with cooling systems
Solution Approach 1:
The furnace interior is divided into multiple inspection zones, each monitored by a dedicated fixed camera positioned to optimize viewing of that specific area. This segmentation allows each camera to capture detailed data of its assigned zone simultaneously, achieving comprehensive information collection without requiring any single camera to remain in the hostile environment for extended periods or withstand extreme temperatures beyond its tolerance limits.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables rapid, detailed, and comprehensive inspection of hostile environments, improving maintenance safety and productivity by allowing operators to assess equipment conditions and plan repairs without direct access, while maintaining continuous production.
Implementation Method 1
using visible, infrared, UV, or thermographic imaging
Implementation Method 2
using visible, infrared, UV, or thermographic imaging
Data Source
AI summary
A method and apparatus for the inspection of a hostile environment includes a sensorized device carrying a plurality of image sensors positioned with different orientations, so as to detect image data of the hostile environment; a support adapted to support the sensorized device in the hostile environment; a processor of the image data generating a spherical and/or three-dimensional image based on the image data; and a remote display device adapted to be positioned outside the hostile environment and in communication with at least the processor of the image data, the plurality of sensors detecting contemporaneous image data of at least 60% of 4π steradians of the hostile environment, the apparatus being adapted for a hostile environment with temperatures and/or atmospheric contaminants harmful or dangerous for human beings.