OGI Camera Robot Inspection With Pre-Cooling and Leak Classification

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Solution Overview

Problem

Existing robots are not well-suited for detecting gas leaks at facilities, as they often lack appropriate sensors, generate excessive heat impairing sensor operation, and capture large volumes of video data without distinguishing relevant features for gas leak detection.

Innovation Solution

A robot system equipped with a sensor system that obtains inspection path information, adjusts camera orientations, and uses an optical gas imaging camera with a cooling system to detect gas leaks, while employing machine learning for image classification and data management to focus on relevant data capture.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If an OGI camera with refrigeration system is used to detect gas leaks, then detection capability is improved, but device complexity increases

Engineering Contradiction:
Improvegas leak detection capabilityVSAvoidrefrigeration system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The refrigeration system is activated in advance before the robot reaches inspection locations to pre-cool the OGI camera sensor. This preliminary cooling ensures the sensor is at optimal temperature for gas leak detection when needed, rather than attempting to cool it rapidly at the moment of inspection.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The refrigeration system operates periodically - cooling the sensor when the robot is traveling between locations and pausing when the robot is stationary at inspection points. This periodic operation reduces energy consumption and thermal stress while maintaining detection capability.

Inventive Principle:
Principle #19Periodic action

2Area of stationary object

If the robot travels between locations, then inspection coverage is improved, but energy consumption increases due to continuous refrigeration

Engineering Contradiction:
Improveinspection coverage areaVSAvoidenergy consumption
Core Design Contradiction:
Area of stationary objectVSUse of energy by moving object

Solution Approach 1:

The refrigeration system is controlled to operate only during specific periods - when the robot is traveling between inspection locations. The system pauses cooling when the robot is stationary at inspection points, thereby reducing overall energy consumption while maintaining the ability to detect gas leaks at all required locations.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The refrigeration system activates in advance during transit to pre-cool the sensor before the robot arrives at inspection locations. This timing strategy ensures the sensor is ready for detection without requiring continuous cooling operation.

Inventive Principle:
Principle #10Preliminary action

3Loss of information

If the robot captures video data at all locations, then data completeness is improved, but data processing burden increases

Engineering Contradiction:
Improvedata completenessVSAvoiddata processing time
Core Design Contradiction:
Loss of informationVSLoss of time

Solution Approach 1:

The system extracts and captures only the specific video frames or image data that contain relevant gas leak detection information, rather than storing all video data. The OGI camera is configured to capture images only when gas leaks are detected or at predetermined critical locations, filtering out unnecessary data during the inspection process.

Inventive Principle:
Principle #2Taking out (Extraction)

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

The system effectively detects gas leaks by optimizing sensor operation, reducing unnecessary data capture, and utilizing machine learning for accurate classification, enhancing the efficiency and accuracy of gas leak inspection.

Implementation Method 1

A robot system equipped with a sensor system that obtains inspection path information, adjusts camera orientations, and uses an optical gas imaging camera with a cooling system to detect gas leaks

Methodology Applied
Scientific EffectThermal cooling: Cooling

Implementation Method 2

uses an optical gas imaging camera with a cooling system to detect gas leaks

Methodology Applied
Scientific EffectInfrared radiation detection: Infrared Radiation

Data Source

PatentUS11858122B2Ground based robot with an OGI camera with computer vision to automate the inspection
Publication Date: 2024.01.02 MFE ENTERPRISES INC
  • US11858122B2 patent drawing
  • US11858122B2 patent drawing
  • US11858122B2 patent drawing

AI summary

Provided is a process including: obtaining a first set of one or more images generated via an optical gas imaging (OGI) camera and a second set of one or more images generated via a second camera, wherein the first set and the second set correspond to a first location of a plurality of locations in a facility; classifying, via a convolutional neural network (CNN), the first set of one or more images according to whether the one or more images depict a gas leak; and storing a result of classifying the first set in memory.