Streetlight Monitoring Using Lamp Sensor for Accurate Metering
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Solution Overview
Problem
Current streetlight monitoring and billing systems rely on inaccurate estimates due to variations in power consumption and lack of actual data, leading to adverse effects on both utility companies and municipalities, as streetlights are not metered like other loads in electrical distribution systems.
Innovation Solution
A streetlight monitoring and control system that includes a lamp sensor, microcontroller, and wireless communication to profile and adjust power consumption based on ambient light levels, line voltage, and component characteristics, allowing for precise metering and control of streetlights, enabling better billing and maintenance practices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If standard metering mechanism is used for streetlights, then billing process is simple, but power consumption measurement accuracy deteriorates due to variations in ballasts, lamps, and line conditions
Solution Approach 1:
The patent replaces the mechanical standard metering mechanism with an intelligent measurement system that uses a microcontroller to monitor actual power consumption, ambient light levels, and operational parameters. This substitution enables accurate measurement of varying power consumption while maintaining automated billing processes.
Solution Approach 2:
The system implements feedback by continuously monitoring actual power consumption, ambient light conditions, and streetlight operational status, then using this data to adjust billing calculations and provide real-time information about power usage patterns. This feedback loop resolves the contradiction by providing both accuracy and operational simplicity.
2Device complexity
If streetlights are monitored using public reports or scheduled maintenance, then system complexity is low, but detection precision of streetlight failures deteriorates
Solution Approach 1:
The streetlight system performs self-diagnosis by monitoring its own operational parameters, failure conditions, and performance metrics. The microcontroller detects failures automatically and reports them, eliminating the need for complex external monitoring systems while achieving high detection precision.
Solution Approach 2:
The patent replaces manual public reporting and scheduled maintenance with an automated electronic monitoring system that uses sensors and microcontrollers to detect failures in real-time, providing precise detection without significant increases in system complexity.
3Ease of operation
If photosensors or time-based contactors control streetlights, then control simplicity is maintained, but adaptability to actual lighting conditions deteriorates
Solution Approach 1:
The system transitions from static time-based or simple photosensor control to dynamic control that continuously adapts to actual ambient light conditions, power consumption patterns, and operational requirements. The microcontroller adjusts streetlight operation in real-time based on monitored parameters, providing both simplicity and adaptability.
Solution Approach 2:
The control system uses feedback from ambient light sensors and power consumption monitors to dynamically adjust streetlight operation, combining the simplicity of automated control with the adaptability to respond to actual environmental and operational conditions.
4Device complexity
If maintenance is performed on scheduled basis or when failure is observed, then maintenance system complexity is low, but maintenance precision and timing deteriorate
Solution Approach 1:
The system performs preliminary detection of potential failures by monitoring operational parameters, power consumption patterns, and component health indicators. This early detection enables maintenance to be scheduled before actual failures occur, improving maintenance timing precision without requiring complex predictive analytics systems.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system provides accurate power consumption data and adaptive control of streetlights, improving billing accuracy and reducing energy waste, while enhancing maintenance efficiency and reducing operational costs.
Implementation Method 1
a lamp sensor mounted on an inside surface of the streetlight to sense a light level from a lamp of the streetlight; a microcontroller coupled to the lamp sensor, wherein ambient light is received by the lamp sensor when the lamp is OFF to determine when to turn ON the lamp
Data Source
AI summary
A system and method for streetlight control is provided. A lamp sensor inside a reflector of the streetlight is utilized to detect the output of a lamp of the streetlight. During daytime periods when the lamp is OFF, the lamp sensor is utilized to act as a day/night sensor by detecting ambient light near the lamp. When the ambient light level falls below a sufficient level indicative that night is approaching the lamp is turned ON and the lamp sensor utilized to detect the lamp output of the streetlight.