Smart Street Lighting Controller with Predictive Maintenance
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Solution Overview
Problem
Current street lighting systems face inefficiencies due to early replacement of non-functioning lamps, leading to increased maintenance costs and user inconvenience, and struggle with managing and processing large datasets, which results in poor data quality and higher network traffic costs.
Innovation Solution
A smart lighting system that includes a controller configured to obtain lighting logging information, model lamp failures, predict future failures, and generate a graphical user interface (GUI) for users to select and visualize predicted failures, along with actual and requested dimming status, burning hours, voltage, current, and power, to optimize maintenance scheduling and data processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If lamps are replaced early before they fail, then user inconvenience is reduced, but maintenance costs increase due to lost lamp life
Solution Approach 1:
The system performs preliminary actions by predicting lamp failures before they occur using machine learning models that analyze historical lighting data. This allows maintenance to be scheduled optimally - not too early (wasting lamp life) and not too late (causing inconvenience). The prediction model calculates probability scores for each lamp failing within a specific time window, enabling proactive but timely replacement scheduling.
Solution Approach 2:
The system implements feedback by continuously monitoring lighting data from lamps and using this information to update failure predictions. The machine learning model learns from historical data patterns, including actual failure events, to improve prediction accuracy over time. This closed-loop feedback mechanism ensures maintenance scheduling is based on actual lamp performance rather than fixed schedules.
2Measurement precision
If large datasets are collected for analysis, then prediction accuracy improves, but data management and processing costs increase
Solution Approach 1:
The system extracts only the most relevant features from the collected lighting data for model training and prediction. Instead of processing entire raw datasets, the system identifies and extracts key features such as lighting intensity patterns, duration metrics, and temporal characteristics that are most predictive of lamp failure. This extraction approach maintains prediction accuracy while significantly reducing data management and processing requirements.
Solution Approach 2:
The system collects more data than strictly necessary for basic monitoring but processes only the essential portions needed for prediction. The machine learning model is trained on comprehensive historical data to learn patterns, but during operation, it uses optimized feature sets and sampling strategies to make predictions without processing every single data point, thus balancing accuracy with processing efficiency.
3Reliability
If comprehensive lighting data is transmitted to the cloud, then analysis quality improves, but network traffic costs and system complexity increase
Solution Approach 1:
The system segments data processing between edge devices and cloud infrastructure. Local controllers or gateways perform preliminary data processing, filtering, and feature extraction before transmitting only essential information to the cloud. This segmentation reduces network traffic volume and complexity while maintaining data quality for prediction purposes, as the most relevant features are identified and transmitted rather than raw comprehensive datasets.
Data Source
AI summary
A lighting system which includes at least one controller which is configured to: obtain lighting logging information related to operation of a lighting system including a plurality of lamps from a lighting logging data portion; model lamp failures in the lighting system in accordance with the lighting logging information in the lighting system and maintenance cost, the model having a time range; predict failures in the lighting system at future times at least in part in accordance with the prediction model; form a graphical user interface (GUI) which includes a graphical depiction of the model; and render the GUI on a rendering device.


