Showing papers on "Street light published in 2011"

Power saving mechanism for street lights using wireless communication

Abstract: Power wastage is one of the most serious problems at present. One of the major challenges at the moment is the improvement of the present street lighting system. To control and maintain complex street lighting system more economically, various street light control systems are developed. The advances in the technologies related to wireless communication has led to the emergence of several engineering designs to aid the human requirements. Monitoring of street lights and controlling, plays a significant role in developing country like India and implementing mobile communication for facilitating electricity board is the basic idea of proposed work. In this paper we are proposing a simpler, multipurpose, cost-effective design to control the on-off mechanism of street lights via Short Message Service (SMS).

Electrical Safety of Street Light Systems

Abstract: Street light systems are publicly accessible electrical pieces of equipment out of the physical control of who operates/owns them. Street lighting systems typically include low-voltage loads, distributed in a large area, and are collectively protected by the same device. Under fault conditions, hazardous potentials may appear on the metal enclosures of these systems, and expose people to shock hazards. To reduce the risk to an acceptable level, different solutions for the bonding and grounding are available. The Standard IEC 60364 and a current worldwide tendency seem to encourage the use of Class II equipment for the street light systems. Class II components, such as the wiring systems, the light fixtures, etc., have double or reinforced insulation. In this paper, these authors analyze technical alternatives to protect against indirect contact in light of the IEC standards. In order to elevate the level of safety offered by Class II metal poles, the adoption of special circuitry and bonding connections to continuously monitor the double insulation of metal poles is proposed.

Street light system

Abstract: PURPOSE: A street light lamp system is provided to rapidly and inexpensively control the entire brightness of a street light lamp system by controlling the brightness of a plurality of slave street light lamps CONSTITUTION: A first street light lamp(10) controls brightness by sensing whether an object approaches The first street light lamp transmits a message including brightness information in order to control the brightness of a third street light lamp A second street light lamp receives the message from the first street light lamp The second street light lamp transfers the message to the third street light lamp The third street light lamp receives the message from the second street light lamp The third street light lamp controls brightness according to the brightness information included in the message The message comprises the address of the first street light lamp, the address of a transmission street light lamp, the address of a reception street light lamp, and brightness information

Street lamp controlor for indicative danger zone and method thereof

Abstract: PURPOSE: A street light control device displaying dangerous situations and a method thereof are provided to help a driver to recognize dangerous situations on the road such as an accident or construction by controlling a street light in a corresponding region. CONSTITUTION: A street light control device includes a plurality of street light controllers(110-1~110-n), a management server(130), and a gateway(120). The street light controllers change the state of the corresponding street light according to a control signal for changing the state of the street light. If the management server receives dangerous situation generation information, it searches a street light close a corresponding area and transmits a state change control signal to the street light. The gateway relays data between the management server and the street light controller.

LED Street Light Research Project

Abstract: LED Street Light Research Project Street lighting systems can account for as much as sixty percent of a municipal government’s total electricity use. New lighting and sensor technologies can reduce energy usage and save money. A major trend in street lighting is to use light emitting diode (LED) technology as a means of lowering energy use and overall maintenance costs. However, RCI's research indicates that performance issues have been neglected. The study team investigated the technological possibilities, best management practices, lessons learned from cities using LED lighting, and the place-making and aesthetic impact of LED lighting. The team also investigated the issues surrounding the replacement of existing fixtures with equivalent LED fixtures. The City of Pittsburgh engaged the Remaking Cities Institute (RCI) to investigate the full range of potential benefits of a replacement program in business districts. The research team included Carnegie Mellon University faculty and researchers from the Remaking Cities Institute, School of Architecture and the School of Drama, as well as lighting consultants from C & C Lighting, LLC in Pittsburgh and Orfield Laboratories, Inc. in Minneapolis, MN.

Power adjustable LED solar street light system

Abstract: The utility model provides a power adjustable LED solar street light system used for realizing the power adjustable function of a street light. The LED solar street light system mainly consists of a street light and a remote control. The street light comprises a street light controller, a solar battery, an LED module, a battery power detecting circuit, a street light wireless transmitter and a street light wireless receiver; the battery power detecting circuit is used for detecting the electric quantity of the solar battery; the street light wireless emitter is used for sending out electric quantity information; and the street light wireless receiver is used for receiving an external control instruction. The remote control comprises a remote control wireless transmitter, a remote control wireless receiver, a displayer, an input device and a remote control controller; the remote control wireless transmitter is used for transmitting a control signal; the remote control wireless receiver is used for receiving the electric quantity information of the street light; and the displayer is used for displaying the electric quantity information.

System for managing safety using energy saving type street light and method for managing safety thereof

Abstract: PURPOSE: A system for managing safety using an energy saving type street light and a method for managing safety thereof are provided to mange the safety of children or the old and the infirm by installing the RFID reader to the street light using sunlight or air volume as the energy source of the street light. CONSTITUTION: A system for managing safety using an energy saving type street light includes a management server comprising: an image processor(130) which processes the read RFID tag information with and the video information through a communication unit(110); an image DB(140) which stores the video information; database (170) which stores RFID tag information, interphone identification information, street light information, RFID reader identifying information, guardian information and public office terminal information; and an interface unit (150) which inputs various information including the database information.

Design and Implementation of street light control system based on WSN technology

Abstract: Based on the analysis and comparisons of the existing street system,and with demands of control and management of today's society street light,in this paper,we designed to conduct street light system,which is achieved the real - time control and detection of a single lamp by means of wireless sensor technology.We analyzed the framework of embedded lights control system design,and designed system software modules to complete the system function,and then achieved real -time information exchange,intelligent control,scheduling and management between the control center and lights.Using the technology of wireless sensor network,we designed street light node module,and realized the real - time control and detection of the single light in this system.

Interactively controlled energy-saving LED street light device

Abstract: An interactively controlled energy-saving LED street light device consists of a street light control host and street light terminals respectively equipped in light boxes of a plurality of street lights. The completion of the installation of this invention enables street lights to provide safe illumination with desirable illumination when vehicles are driven on the street and to automatically save energy when no vehicle is on the street to provide active energy saving effect. In addition, the street light terminals of street lights communicates with each other by sending, receiving and transmitting wireless signals, and the registration ID code of each street light terminal, after being switched on, allows automatic verification and registration on the street light control host, to provide the capability of management, control and setting. Thus, according to the number, condition, or requirement of respective street light installed on the street, regardless of the temporary addition or elimination of street light terminals, all equipment and specifications can remain without alteration, and the system can be set up with the same street light control host, thereby providing a consistent stable function control. More particularly, the street light control host of high response capability can response to the flexible function setting of abnormal or failed street lights automatically, such that abnormal or failed street lights can still maintain desirable street illumination or provide illumination with reduced energy consumption before repair. In addition, regardless of the number of street lights corresponding to the street light control host, only one outbound network connection is required to enable the remote monitoring device to completely take control of the operation state of all street lights, and the remote communication resource and costs and management costs can also be reduced.

Street lighting device

Abstract: Disclosed is a street lighting device having a solar cell module of a novel kind; in which a solar cell module is provided on a street light provided on a main road or in a park or on a residential street or the like, and which can reduce the consumption of electrical energy obtained through the use of fossil fuels by allowing the electrical energy obtained from the solar cell module to be used as the power source for light-emitting diodes (LEDs) comprised in the street light and for unmanned cameras, speakers and various audio/video systems provided on the street light, and which can also create a more aesthetically pleasing urban environment.

Street Light Monitoring and Energy-saving System Based On CC1101 Wireless Ad Hoc Network

Abstract: In order to improve the management efficiency and energy saving effect of street light control system,it's very important to design a self-group network.With the model of street light monitoring and management system,the characteristics of wireless Ad Hoc networks and the application development method for the energy-saving street light control system is discussed.The system programme consisting of GIS network and real-time control is proposed.The design of street light control system is given including hardware design,software design,application profile,IP address allocation mechanism.The system programme is tested on the platform of Chipcon CC1101.The proposed system is successfully applied to actualproject.The street lightenergy-saving control system has characteristics of intellec-tualization,informationization,high reliability,low cost objectives,etc.The obvious energy saving control result is obtained.

Solar street light cluster control system

Abstract: The utility model discloses a solar street light cluster control system which comprises a main street light control system and a slave street light control system, wherein the main street light control system comprises a sensitization element, a main microprocessor, a main street light driving device and an interface of a communication system communicated with the slave street light control system, wherein the output of the sensitization element is connected with the main microprocessor, the main microprocessor controls the main street light driving device; the slave street light control system comprises a slave microprocessor, a slave street light driving device and an interface of a communication system communicated with the main street light control system; and the slave microprocessor obtains information sent by a main street light through the interface of the communication system and controls the slave street light driving device. In the technical scheme of the utility model, the main street light is used for obtaining outside light intensity by using the sensitization element, and communicated with slave street lights around the main street light through a Bluetooth communication system so as to uniformly control all street lights around to be synchronously switched on or off, thus the shortage of the traditional solar street light control system is overcome.

The Application of the Culture of the Han Dynasty to the City LED Street Light Modelling Design

Abstract: This article unfolds the exploration of the city LED street light modelling design based on the study on the cultural elements of the Han dynasty. Applies the extracted cultural elements, as well as the symbol and the structure characteristics of the lights of the Han dynasty to the city LED street light modelling design and discusses the theory and the practical designs in way of studying the cases. The article also concludes the new methods to design the city LED street light modelling based on the culture.

Optical Design of LED Street Lights

Abstract: High-power light emitting diode (LED) develops greatly owing to its energy efficiency, light mono-direction and long operating life. But it is critical to have a secondary optics design for the LED street light, for obtaining good output efficiency and light distribution pattern. This article introduces many advantages of LED as street lightings source, and also analyzes the status and features of LED lamps’ application as street lightings. This article mainly designs a secondary optical light distribution implement using Lighttools 7.1. This paper also gives an example of one kind of freeform surfaces lens which can realize rectangular light shape.