RESEARCH ON THE APPLICATION BENEFITS OF THE LED LIGHT SOURCE BASED ON THE ROAD LIGHTING SYSTEM FOR THE SMART CITY — IN TIANJIN REGION AS AN EXAMPLE

2018 ◽  
Author(s):  
Xiufeng Ma ◽  
Lixiong Wang ◽  
Gao Yuanpeng ◽  
Juan Yu ◽  
Junrong Ma
Keyword(s):  
Light Source ◽  
Smart City ◽  
Lighting System ◽  
Led Light ◽  
The Road ◽  
Road Lighting ◽  
On The Road

The Research of LED Lights Model Based on Road Lighting in Mesopic Vision

2012 ◽  
Vol 260-261 ◽  
pp. 130-136
Author(s):  
Fang Zhou Zhu ◽  
Wei Hai Yuan ◽  
Hua Mei Xu ◽  
Yue Feng Yuan
Keyword(s):  
Light Source ◽  
Simulation Analysis ◽  
Model Simulation ◽  
Structural Features ◽  
Source Distribution ◽  
Distribution Model ◽  
Led Light ◽  
The Road ◽  
Road Lighting ◽  
Green Background

This paper analyzes the structural features of the human eye in the middle of the road lighting visual state of the visual request of road lighting in the Mesopic range of lighting, road lighting standards to build a white and green LED light source distribution model and defines the sharpness of the image according to the model function. In the Matlab7.1 environment, high pressure sodium yellow light LED white light and LED white and green background light, the model simulation analysis of the image clarity, results show that, in the Mesopic same brightness level state road lighting selection white and green the LED light source has better clarity and sensitivity.

Introduction To The New Energy Efficient Class for Road Lighting In Indian Context

2021 ◽  
pp. 135-145
Author(s):  
Suddhasatwa Chakraborty ◽  
Saswati Mazumdar
Keyword(s):  
Energy Efficient ◽  
Lighting Design ◽  
Density Parameter ◽  
Lighting System ◽  
New Classification ◽  
The Road ◽  
Road Lighting ◽  
New Energy ◽  
On The Road ◽  
Indian Scenario

The assessment of energy consumption in the field of road lighting is different from other lighting applications. In this paper, a newly developed parameter is introduced for the proper assessment of energy efficiency for lighting design of Indian road. The basis of the proposed normalized power density parameter and the effects of few governing factors on it have been also discussed in detail. Those factors are governing measured and calculated based on the road lighting in Indian scenario. A new classification for energy efficient road lighting in Indian road has been introduced. This new proposed classification will help to determine whether a road lighting system is energy efficient or not.

scholarly journals Designing Traffic Signal at an Unsignalized Intersection

2021 ◽  
pp. 90-107
Author(s):  
Prachi Agrawal ◽  
Preeti Kumari ◽  
Dr. Manish Dutta
Keyword(s):  
Programming Language ◽  
Smart City ◽  
Traffic Signal ◽  
Road Accidents ◽  
The Road ◽  
Road Intersections ◽  
Smooth Movement ◽  
On The Road

The increasing number of vehicles on the road intersections has given rise to many problems like road accidents, congestions add conflicts. These problems can only be solved by deigning proper traffic signal at intersections for continuous and smooth movement of vehicles Nagpur- though the smart city- is also facing the same problem. This paper presents the proper designing and simulation of traffic signal at an unsignalized intersection at Nagpur. The paper deals with the simulation of designed signal through a programming language like Python.

scholarly journals Maintenance Factor Identification in Outdoor Lighting Installations Using Simulation and Optimization Techniques

Energies ◽  
2018 ◽  
Vol 11 (8) ◽  
pp. 2169 ◽  
Author(s):  
Ana Ogando-Martínez ◽  
Javier López-Gómez ◽  
Lara Febrero-Garrido
Keyword(s):  
Modeling And Simulation ◽  
Open Source ◽  
Optimization Techniques ◽  
Lighting System ◽  
Street Lighting ◽  
Optimization Program ◽  
Simulation And Optimization ◽  
The Road ◽  
Road Lighting ◽  
Combined Use

This document addresses the development of a novel methodology to identify the actual maintenance factor of the luminaires of an outdoor lighting installation in order to assess their lighting performance. The method is based on the combined use of Radiance, a free and open-source tool, for the modeling and simulation of lighting scenes, and GenOpt, a generic optimization program, for the calibration of the model. The application of this methodology allows the quantification of the deterioration of the road lighting system and the identification of luminaires that show irregularities in their operation. Values lower than 9% for the error confirm that this research can contribute to the management of street lighting by assessing real road conditions.

FAST LANE DETECTION USING DIRECTION KERNEL FUNCTION

2012 ◽  
Vol 10 (02) ◽  
pp. 1250017 ◽  
Author(s):  
YIMING NIE ◽  
BIN DAI ◽  
XIANGJING AN ◽  
ZHENPING SUN ◽  
TAO WU ◽  
...  
Keyword(s):  
Kernel Function ◽  
Lane Detection ◽  
Vanishing Point ◽  
Robust Detection ◽  
The Road ◽  
Road Lighting ◽  
Lane Tracking ◽  
Lane Marking ◽  
On The Road ◽  
Fast Lane

The lane information is essential to the highway intelligent vehicle applications. The direct description of the lanes is lane markings. Many vision methods have been proposed for lane markings detection. But in practice there are some problems to be solved by previous lane tracking systems such as shadows on the road, lighting changes, characters on the road and discontinuous changes in road types. Direction kernel function is proposed for robust detection of the lanes. This method focuses on selecting points on the markings edge by classification. During the classifying, the vanishing point is selected and the parts of the lane marking could form the lanes. The algorithm presented in this paper is proved to be both robust and fast by a large amount of experiments in variable occasions, besides, the algorithm can extract the lanes even in some parts of lane markings missing occasions.

scholarly journals With Geospatial in Path of Smart City

2015 ◽  
Vol XL-7/W3 ◽  
pp. 1381-1387 ◽  
Author(s):  
A. S. Homainejad
Keyword(s):  
Information And Communication Technologies ◽  
Smart City ◽  
Traffic Management ◽  
Road Network ◽  
Aerial Images ◽  
Transport Systems ◽  
City Management ◽  
Traffic Jam ◽  
The Road ◽  
On The Road

With growth of urbanisation, there is a requirement for using the leverage of smart city in city management. The core of smart city is Information and Communication Technologies (ICT), and one of its elements is smart transport which includes sustainable transport and Intelligent Transport Systems (ITS). Cities and especially megacities are facing urgent transport challenge in traffic management. Geospatial can provide reliable tools for monitoring and coordinating traffic. In this paper a method for monitoring and managing the ongoing traffic in roads using aerial images and CCTV will be addressed. In this method, the road network was initially extracted and geo-referenced and captured in a 3D model. The aim is to detect and geo-referenced any vehicles on the road from images in order to assess the density and the volume of vehicles on the roads. If a traffic jam was recognised from the images, an alternative route would be suggested for easing the traffic jam. In a separate test, a road network was replicated in the computer and a simulated traffic was implemented in order to assess the traffic management during a pick time using this method.

scholarly journals WEATHER AND TRAFFIC MONITORING SYSTEM IoT-Based TOWARDS JAMBI SMART CITY

2021 ◽  
Vol 4 (1) ◽  
pp. 129-132
Author(s):  
Imti Tsalil Amri ◽  
Santoso Santoso ◽  
Teuku Djauhari ◽  
Brestina Gultom
Keyword(s):  
Success Rate ◽  
Monitoring System ◽  
Smart City ◽  
Research Method ◽  
Traffic Monitoring ◽  
Traffic Jam ◽  
The Road ◽  
Descriptive Research ◽  
On The Road

With the large number of vehicles on the road today, we often get stuck in a traffic jam on our way to a place. And the temperature or the weather that often changes sometimes also causes us to get stuck in a weather. Thus both these problems was made a journal WEATHER AND TRAFFIC MONITORING SYSTEM IoT-BASED TOWARDS JAMBI SMART CITY. This research uses descriptive research method. This method uses action techniques that focus on implementing actions with the aim of improving quality or solving problems in a group of objects and observing the success rate or impact of their actions.

scholarly journals Assessment of Colorimetric Parameters for HPS Lamp with Electromagnetic Control Gear and Electronic Ballast

Energies ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2909
Author(s):  
Roman Sikora ◽  
Przemysław Markiewicz
Keyword(s):  
New Technologies ◽  
Technical Condition ◽  
Road Accident ◽  
Electronic Ballast ◽  
The Road ◽  
Advantages And Disadvantages ◽  
Road Lighting ◽  
Road Users ◽  
Electromagnetic Control ◽  
On The Road

Road lighting is an important element of road infrastructure influencing on the road safety. It helps road users to identify potential hazards on the road and reduces the risk of a road accident. Improving the energy efficacy of road lighting installations requires using new technologies. Currently, high-pressure sodium (HPS) lamps are still most commonly used in road lighting. Many of the luminaires with HPS lamps are still in good technical condition and there is no economic justification for replacing them (except improving energy efficacy). One of the methods of improving their energy efficacy is to replace the electromagnetic control gear (ECG) with an electronic ballast (EB). This replacement may affect the colorimetric parameters of the HPS lamps. Two methods to the estimation change of colorimetric parameters after the replacement of ECG to EB were used. The first is CIE TN 001:2014 and the second is ANSI/IES TM-30-15. The article also presents the advantages and disadvantages of these methods in relation to the evaluation of changes in colorimetric parameters of HPS lamps after the replacement of the ECG with an EB. After the replacement of ECG to EB, the smallest reduction of Ra (colour rendering index) occurred for the 150 W lamp by 31.30% and the highest reduction for the 70 W lamp by 65.52%. Considering the changes of the fidelity indicator Rf and gamut indicator Rg, their changes are significantly smaller than for Ra. The smallest change of Rf value was observed for a 150 W lamp (6.00%) and the largest for a 70 W lamp by 25.00%. In case of Rg, similar changes were observed—for 150 W lamp by 9.26% and for 70 W lamp by 21.88%. The ANSI/IES TM-30-15 method is more suitable for evaluating colorimetric parameters after replacing ECG with EB. Using only Ra to evaluate changes of HPS lamps colorimetric parameters after replacing the ballast type can lead to incorrect conclusions concerning changes of colorimetric parameters. Based on the ANSI/IES TM-30-15 method, it has been proposed to introduce the Δf,g indicator which determines the change of colorimetric parameters based on fidelity and gamut colour indicator.

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