Adaptive Streetlight Intensity Control via Sensor Feedback
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Solution Overview
Problem
Streetlights and parking lot lights consume a significant portion of a city's budget due to constant energy use, and existing methods to reduce energy consumption, such as ambient light sensors, are limited in adaptability and responsiveness to environmental and activity changes.
Innovation Solution
A computer-implemented method and system that allows streetlights to adjust their intensity based on sensed inputs like motion, audio, and communication signals, receiving lighting profiles wirelessly from a control center, and transmitting feedback to adapt energy use dynamically, while maintaining adequate illumination and security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If streetlights operate continuously at full intensity, then public safety and illumination are maintained, but energy consumption increases significantly
Solution Approach 1:
The lighting system dynamically adjusts light intensity based on real-time sensor inputs (motion detectors, ambient light sensors, audio sensors) rather than operating at fixed intensity. The control module modulates LED brightness to match actual environmental conditions, reducing energy consumption while maintaining safety when needed
Solution Approach 2:
The system incorporates multiple sensors that continuously monitor environmental conditions and feed this information back to the control module. This feedback loop enables automatic adjustment of lighting intensity based on detected motion, ambient light levels, and audio signals, optimizing the balance between safety and energy efficiency
2Use of energy by moving object
If ambient light sensors are used to control streetlights, then energy consumption is reduced, but adaptability to environmental and activity changes is limited
Solution Approach 1:
The lighting assembly integrates multiple sensor types (motion detectors, ambient light sensors, audio sensors) within a single universal platform. This multi-functional system can detect various environmental conditions and activity types, enabling adaptive response to diverse situations beyond what a single sensor type could achieve
Solution Approach 2:
The system transitions from static ambient light sensing to dynamic multi-parameter monitoring. The control module processes inputs from multiple sensor types and continuously adjusts lighting intensity in real-time based on the combined environmental data, enhancing adaptability to changing conditions
3Adaptability or versatility
If multiple sensors are integrated in each lighting assembly, then adaptability and responsiveness improve, but device complexity increases
Solution Approach 1:
Multiple sensor types (motion, ambient light, audio) are merged into a single integrated lighting assembly housing. The sensors share common power supply, mounting structure, and communication infrastructure, reducing overall system complexity compared to separate distributed sensor systems
Solution Approach 2:
The lighting assembly serves multiple functions: illumination, motion detection, ambient light sensing, and audio monitoring. This multi-functional design consolidates what would otherwise be separate systems into a single integrated unit, managing complexity through functional consolidation
4Ease of operation
If lighting profiles are transmitted wirelessly from control center, then remote control and monitoring are enabled, but communication overhead and energy use increase
Solution Approach 1:
The system transmits communication signals periodically rather than continuously. Lighting profiles are sent from the control center at scheduled intervals or triggered by specific events, reducing communication overhead and energy consumption compared to constant data exchange
Solution Approach 2:
The lighting assembly acts as an intermediary that stores received lighting profiles locally and executes them autonomously. This eliminates the need for continuous real-time communication with the control center, reducing communication energy while maintaining remote control capability
Data Source
AI summary
A first lighting assembly receives a lighting profile that instructs the first lighting assembly to operate according to the lighting profile over a first period of time. The received lighting profile is implemented, including causing a light of the first lighting assembly to illuminate at a first intensity. An input acquired in proximity to the first lighting assembly and indicating activity in a region proximate the first lighting assembly is received. The received lighting profile is then deviated from, in response to the received input, by increasing the intensity of the light to illuminate at a second intensity for a predetermined period of time. A message is transmitted for receipt by the control center, the message including an indication of the increased light intensity and an identifier associated with the first lighting assembly.