Elevator–Machine Passenger Interaction Simulation for Fault Diagnosis

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Solution Overview

Problem

Existing fault diagnosis methods for interactions between elevator systems and machine passengers are cumbersome, requiring high professional literacy and extensive manual checks due to complex software and hardware interactions, making it difficult to accurately identify fault origins.

Innovation Solution

A fault diagnosis method involving data acquisition, simulation of interaction processes, and judgment of fault types using an interaction management apparatus to standardize maintenance procedures, reducing the need for specialized knowledge and time consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual fault diagnosis is performed by maintenance personnel, then fault diagnosis can be conducted, but it requires extremely high professional literacy and consumes large amounts of time and manpower

Engineering Contradiction:
Improvefault diagnosis accuracyVSAvoiddiagnosis time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system enables self-diagnosis through the simulation apparatus that automatically executes interaction processes between machine passengers and elevator systems, generates diagnostic information, and identifies fault types without requiring manual intervention from maintenance personnel for each diagnostic step

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces manual mechanical diagnostic procedures with an automated information processing system that uses simulation apparatus to reproduce interaction processes, collect diagnostic data, and analyze faults through computational methods rather than physical manual checking

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Measurement precision

If manual fault diagnosis is performed by maintenance personnel, then fault diagnosis can be conducted, but it requires extremely high professional literacy

Engineering Contradiction:
Improvefault diagnosis accuracyVSAvoidoperational complexity
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The simulation apparatus serves as an intermediary between maintenance personnel and the complex elevator system, providing a user-friendly interface that automatically handles complex interaction processes, data collection, and fault analysis while maintaining accurate diagnostic capabilities

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces complex manual diagnostic procedures with automated information processing and simulation systems that handle technical complexity internally, allowing maintenance personnel to perform simple operations without requiring high professional literacy

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Measurement precision

If each apparatus in the interaction system is checked one by one, then fault can be identified, but it consumes large amounts of manpower and material sources

Engineering Contradiction:
Improvefault identification accuracyVSAvoiddiagnosis process complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent merges multiple diagnostic functions into a single simulation apparatus that can simultaneously check multiple apparatuses in the interaction system by executing comprehensive interaction processes, thereby reducing the need for separate manual checking of each component

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The simulation apparatus creates virtual copies of the interaction processes between machine passengers and elevator systems, allowing diagnostic information to be collected and analyzed without physically checking each apparatus, thus reducing manpower and material requirements

Inventive Principle:
Principle #26Copying

Data Source

PatentEP3882201B1Fault diagnosis method, readable storage medium, electronic device and fault diagnosis system for interaction between elevator system and machine passenger
Publication Date: 2025.07.16 OTIS ELEVATOR CO
  • EP3882201B1 patent drawingFigure 1
  • EP3882201B1 patent drawingFigure 2
  • EP3882201B1 patent drawingFigure 3

AI summary

A fault diagnosis method, a readable storage medium, an electronic device and a fault diagnosis system for interaction between an elevator system and a machine passenger. The fault diagnosis method comprises: acquiring diagnostic information from the elevator system and the interaction management apparatus; simulating an interaction process between the machine passenger and the elevator system via the interaction management apparatus based on the acquired diagnostic information; and judging a fault type of interaction between the machine passenger and the elevator system based on the simulated interaction process. For maintenance personnel, this fault diagnosis method provides a relatively standardized maintenance procedure, the operation being convenient, and the requirement for professional literacy being reduced. For a customer, the maintenance process is less time consuming and accurate in diagnosis result, fault points in the interaction process of the two sets of products can be quickly and efficiently determined, so that targeted treatment measures are provided to quickly finish the product maintenance.