Conveyor Condition Monitoring via Current Characteristic Analysis
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conveyor systems in airports face frequent failures due to inadequate condition monitoring, leading to costly maintenance and downtime, as existing solutions are not easily retrofittable and rely heavily on manual inspections, which are skill-dependent.
Innovation Solution
A condition monitoring system utilizing decentralized motor starter technology to record and analyze current characteristics of conveyor units, enabling early detection of wear and malfunctions by comparing actual current consumption against defined norms, and providing data for proactive maintenance planning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If preventive maintenance according to a regular scheme is implemented, then failure frequency is reduced, but more replacement parts and working hours are required
Solution Approach 1:
The system transitions from fixed-time preventive maintenance to condition-based maintenance by continuously monitoring parameters such as vibration, temperature, and current characteristics. This allows maintenance to be performed based on actual system condition rather than predetermined schedules, reducing unnecessary part replacements while maintaining reliability
Solution Approach 2:
The conveyor system performs self-diagnosis through integrated sensors and monitoring systems that automatically detect anomalies and predict failures. This self-monitoring capability enables the system to identify when maintenance is actually needed, eliminating the need for routine preventive maintenance of components that are still functioning properly
2Reliability
If condition monitoring systems based on vibration and temperature monitoring are implemented, then sudden changes indicating system failures can be detected, but manual inspection is still required which is greatly dependent upon technician experience
Solution Approach 1:
The system replaces manual inspection with automated electronic monitoring and analysis. Sensors continuously collect data on vibration, temperature, and electrical characteristics, while embedded processing algorithms automatically analyze these signals to detect anomalies and predict failures, eliminating dependency on technician experience and skills
Solution Approach 2:
The monitoring system provides continuous feedback on system condition through automated analysis of sensor data. The system compares actual measurements against baseline values and trends, automatically generating alerts when deviations indicate potential failures, thereby eliminating the need for manual interpretation by technicians
3Loss of information
If decentralized motor controller technology is used, then data such as driving current and condition progression can be provided with time stamp, but system complexity increases during modernization
Solution Approach 1:
The decentralized motor controllers serve multiple functions: they control motor operation, monitor electrical parameters, collect operational data with timestamps, and communicate with the central management system. This multi-functionality consolidates what would otherwise require separate components, reducing overall system complexity while maintaining comprehensive data collection capabilities
Solution Approach 2:
The system merges motor control functions with condition monitoring functions into integrated decentralized controllers. By combining these previously separate functions into unified hardware and software modules, the system reduces the number of discrete components and simplifies the architecture during modernization from centralized to decentralized control
Data Source
AI summary
A system and a method for condition monitoring during the operation of a conveyor system, in particular an airport baggage conveyor system, includes conveyor units and a background system. A conveyor unit includes an individual conveyor line and/or a group of conveyor lines. It is possible to record an individual current characteristic of an individual conveyor unit. Each individual conveyor unit has a defined current characteristic during fault-free operation and the background system is configured to record the defined current characteristic and the actual current characteristic of the conveyor unit. The background system is configured to analyze the actual current characteristic of the conveyor unit and to signal, on the basis of the analysis, an impending wear and/or a malfunction of the conveyor system, in particular of a conveyor line of the conveyor unit.