Multi-Sided Solar Streetlight Lamp Post for Vehicle Detection
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Solution Overview
Problem
Conventional solar streetlights are sensitive to high winds, provide reduced mechanical stability, and do not efficiently collect sunlight throughout the day or year, leading to reduced efficiency and visual clutter.
Innovation Solution
A streetlight lamp post design with solar cells arranged on multiple sides, equipped with a control unit to determine orientation and control light output based on detected light input, allowing for improved solar harvesting and vehicle detection, enabling light-on-demand functionality without additional sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If solar panels are arranged on top of the streetlight pole, then the structure is simple to implement, but the mechanical stability is reduced and wind sensitivity increases
Solution Approach 1:
The solar panel array is segmented into multiple modules distributed at different heights and orientations on the pole, rather than concentrated at the top. This segmentation reduces the top-heavy effect and improves mechanical stability while maintaining ease of installation through modular mounting units.
2Ease of manufacture
If solar panels are arranged on top of the streetlight, then installation is simplified, but solar energy collection efficiency is reduced due to limited sun tracking
Solution Approach 1:
The solar collection system transitions from a single horizontal plane (top of pole) to a three-dimensional distributed arrangement with panels at multiple heights and angular orientations. This dimensional expansion enables the system to capture sunlight from various angles throughout the day, significantly improving energy collection efficiency.
Solution Approach 2:
The solar panels are configured with adjustable mounting mechanisms that allow dynamic repositioning of individual panels to optimal angles based on sun position. This dynamic adjustment capability maximizes solar energy capture throughout the day while maintaining structural simplicity.
3Device complexity
If conventional solar streetlights are used, then the system is simple, but visual clutter is increased and adaptability to traffic conditions is reduced
Solution Approach 1:
The solar panels serve dual functions: primarily as photovoltaic energy collectors and secondarily as optical sensors for detecting vehicle headlights and ambient light conditions. This multi-functionality enables traffic-adaptive lighting control without adding separate sensor systems, maintaining simplicity while enhancing adaptability.
Solution Approach 2:
The system uses its own solar panel array to detect traffic conditions by monitoring light input patterns, eliminating the need for external sensors. The control unit processes signals from the solar panels to automatically adjust lighting output based on detected vehicle presence, enabling self-service traffic adaptation.
4Use of energy by moving object
If solar cells are arranged on sides of the lamp post, then solar harvesting during low sun angles is improved, but device complexity increases
Solution Approach 1:
The solar collection system is divided into multiple segmented modules positioned at different heights and orientations on the pole. Each module is independently mounted but collectively forms an integrated system, capturing sunlight from various angles including low winter sun positions without requiring complex tracking mechanisms.
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
Enhances solar energy collection, particularly during low sun angles, reduces visual clutter, and provides adaptive lighting based on vehicle detection, optimizing energy use and reducing mechanical instability.
Implementation Method 1
Solar-powered street lighting systems enable building and lighting new roads in areas without an existing power infrastructure
Implementation Method 2
The control unit is configured to determine, based on light input detected by the at least one first solar cell and the at least one second solar cell, an orientation of the at least one first solar cell and the at least one second solar cell with regard to a road and/or approaching vehicles
Data Source
AI summary
A streetlight lamp post (100) comprising a streetlight (104) mounted on a lamp post (102). The streetlight lamp post further comprises at least one first solar cell (106) arranged at a first side of the lamp post, at least one second solar cell (108) arranged at a second side of the lamp post, and a control unit (212). The control unit is configured to determine an orientation of the at least one first solar cell and the at least one second solar cell with regard to a road (524) and/or approaching vehicles (526) based on light input detected by the at least one first solar cell and the at least one second solar cell. The control unit is further configured to control the streetlight based on light input detected by the first solar cell and/or the second solar cell and the determined orientation of the solar cells.