Conveyor Drive Monitoring via Local Sensor Processing

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Solution Overview

Problem

Existing conveyor systems face inefficiencies due to the use of general-purpose sensors and actuators that are not specifically designed for elevator drives, leading to complexity, high costs, and delayed processing, which can affect ride comfort and operational reliability.

Innovation Solution

A conveyor system with a dedicated sensor array and processing unit that measures and processes data locally, reducing data transfer complexity and enabling real-time monitoring and predictive maintenance by detecting deviations in operational parameters and sending relevant information to the control unit.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If general-purpose sensors and actuators are used to monitor conveyor system operation, then the system can be designed to fit a wide variety of applications, but the system becomes complicated, expensive, and slow due to overlapping processing and control functions

Engineering Contradiction:
Improveapplication versatilityVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent segments the monitoring system into dedicated functional units: sensor arrays for data collection, processing units for local analysis, and communication channels for data transmission. This segmentation eliminates overlapping functions while maintaining adaptability through modular design that can be configured for different conveyor applications.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements local quality by placing processing units directly at the machinery side where sensors are located, enabling local data processing and analysis. This reduces the need for complex centralized processing and allows the system to be tailored to specific local monitoring needs while simplifying overall system architecture.

Inventive Principle:
Principle #3Local quality

2Adaptability or versatility

If general-purpose sensors and actuators are used to monitor conveyor system operation, then the system can be designed to fit a wide variety of applications, but the processing speed decreases due to delayed controlling when measurement data deviates from normal

Engineering Contradiction:
Improveapplication versatilityVSAvoidprocessing speed
Core Design Contradiction:
Adaptability or versatilityVSSpeed

Solution Approach 1:

The patent implements preliminary action by having processing units continuously analyze measurement data in real-time as it is collected by sensors. This continuous local processing ensures that deviations from normal operation are detected immediately, enabling rapid response and control actions without the delays associated with centralized batch processing.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent establishes feedback loops where processing units continuously monitor measurement data, compare it against normal operating parameters, and trigger immediate control responses when deviations are detected. This real-time feedback mechanism ensures fast processing speed while maintaining versatility through configurable monitoring thresholds and response protocols.

Inventive Principle:
Principle #23Feedback

3Reliability

If measurement data is conveyed from sensors to control unit through dedicated cabling, then data can be transferred distinctly from the machinery side, but the complexity of the conveyor system increases and delays in processing measurement data occur

Engineering Contradiction:
Improvedata transfer reliabilityVSAvoidcabling complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges the functions of data collection, processing, and communication by integrating processing units directly with sensor arrays at the machinery side. This consolidation eliminates the need for extensive dedicated cabling between sensors and control units, reducing system complexity while maintaining reliable data transfer through integrated communication channels.

Inventive Principle:
Principle #5Merging (Combining)

4Measurement precision

If many separate sensors and actuators are positioned in applicable positions within the elevator drive, then comprehensive operational information can be obtained, but the system becomes complicated and expensive

Engineering Contradiction:
Improveoperational monitoring precisionVSAvoidsensor array complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent implements universality by designing processing units that can handle multiple types of sensor data and perform various analysis functions. These multi-functional processing units replace the need for numerous specialized sensors and actuators, maintaining comprehensive operational monitoring while simplifying the overall system architecture and reducing costs.

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

Data Source

PatentUS11440776B2Monitoring solution for a conveyor system
Publication Date: 2022.09.13 KONE OYJ
  • US11440776B2 patent drawing
  • US11440776B2 patent drawing
  • US11440776B2 patent drawing

AI summary

The present invention relates to a conveyor system comprising: a drive machine, a conveyor control unit configured to control operation of a conveyor device, a sensor array comprising at least one sensor mounted to the drive machine and adapted to measure one or more properties of the drive machine, a processing unit associated with the drive machine, wherein the processing unit is connected to the sensor array and configured to obtain and process measurement data from the sensor array to generate in-formation about an operation of the drive machine, and a communication channel between the conveyor control unit and the processing unit. The conveyor system may be an elevator system, an escalator system or a moving walk system.