Mass Spectrometer Maintenance Scheduling Using Sensor Feedback

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Solution Overview

Problem

Existing maintenance techniques for scientific instruments, such as chromatograph-equipped mass spectrometers, rely on manual scheduling, leading to potential delays or neglect of maintenance tasks, which can result in instrument degradation.

Innovation Solution

A computer-implemented method and system that utilizes a determination component to assess the need for maintenance based on electronic counters or readback sensors, a scheduling component to predict a suitable time for maintenance using machine learning, and a preparation component to adjust hardware settings in preparation for the maintenance task.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual scheduling is used for maintenance tasks, then ease of operation is maintained, but reliability deteriorates due to potential delays or neglect of maintenance

Engineering Contradiction:
Improvemaintenance task completionVSAvoidmanual scheduling complexity
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The scientific instrument automatically monitors its own operational parameters through electronic counters and readback sensors, determines when maintenance is needed, schedules maintenance tasks, and prepares hardware actuators without external intervention. This self-service capability eliminates manual scheduling while ensuring maintenance is performed reliably based on actual instrument conditions.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system continuously monitors operational parameters through electronic counters and readback sensors, using this feedback to determine when maintenance thresholds are reached. This feedback loop ensures maintenance is scheduled based on actual instrument state rather than fixed intervals, improving reliability while reducing unnecessary maintenance operations.

Inventive Principle:
Principle #23Feedback

2Reliability

If automatic monitoring and scheduling is implemented, then reliability is improved, but device complexity increases

Engineering Contradiction:
Improvemaintenance task completionVSAvoidsystem architecture
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The processor executes multiple functions including monitoring operational parameters, determining maintenance needs, scheduling maintenance tasks, and controlling hardware actuators. By consolidating these functions into a single processing unit, the system achieves automatic maintenance management without proportionally increasing overall device complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system combines electronic counters, readback sensors, determination logic, scheduling algorithms, and hardware actuator control into an integrated maintenance management system. This merging of components reduces the complexity that would arise from separate independent systems while maintaining comprehensive automatic maintenance capability.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If maintenance is performed on schedule, then instrument reliability is maintained, but loss of time occurs due to maintenance interruptions

Engineering Contradiction:
Improveinstrument performanceVSAvoidmaintenance downtime
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system schedules maintenance tasks in advance based on predicted future states of operational parameters. By preparing maintenance tasks before they are critically needed and pre-positioning hardware actuators in appropriate states, the system minimizes the actual maintenance downtime while ensuring reliability is maintained.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The maintenance scheduling is dynamic rather than static, adjusting maintenance timing based on actual operational conditions and parameter degradation rates. This allows the system to perform maintenance only when necessary, reducing unnecessary maintenance interruptions while maintaining instrument reliability through condition-based scheduling.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS20250060341A1Intelligent maintenance for scientific instruments
Publication Date: 2025.02.20 THERMO FINNIGAN LLC
  • US20250060341A1 patent drawing
  • US20250060341A1 patent drawing
  • US20250060341A1 patent drawing

AI summary

Systems or techniques are provided for facilitating intelligent maintenance for scientific instruments. In various embodiments, a scientific instrument can comprise a chromatograph-equipped mass spectrometer. In various aspects, the scientific instrument can determine, based on an electronic counter or readback sensor associated with the chromatograph-equipped mass spectrometer failing to satisfy a threshold, whether performance of a maintenance task on the chromatograph-equipped mass spectrometer is warranted. In various instances, the scientific instrument can schedule, in response to a determination that the performance of the maintenance task is warranted, a time or date for the performance of the maintenance task, wherein the time or date can be predicted by a machine learning model based on an operational history of the chromatograph-equipped mass spectrometer. In various cases, the scientific instrument can prepare for the performance of the maintenance task, by adjusting, prior to the time or date, actuatable hardware of the chromatograph-equipped mass spectrometer.