Smart street light system looking like usual street lights based on sensor networks

Towards smart street LED lighting systems and preliminary energy saving results

“…The numbers in terms of energy savings using smart street lighting systems are similar for various researches [2]- [6], and the Pilot Sites in Riga justifies that with practical measurements.…”

“…And here the question arises, what exactly smart street lighting system is, and where it came from. Also within these numbers of articles like [10][11][12][13][14], who have in titles these terms like "smart" or "intelligent" lighting system, in the text actually does not reflect the meaning or explanation -why it is "smart" or "intelligent", only few of them [2,6] give or use reference that explains what the authors meant with this terminology. At first it seems, that most people just grabbed fancy word and added to the article title, just to make it sound more important.…”

“…For smaller cities and areas, in order to obtain more savings, it is common to use also delay timers, especially for low traffic streets, in this case light comes ON later, than in the rest of city, at the same time also that smoothes out the load pikes on the electrical grid. In some countries [2] a popular solution for automation is to install twilight switches (Integral photoelectric sensor like "Finder 10.51") in electric cabinet, or even use embedded brightness sensors for each luminary, especially common in autonomous LED based luminaries [3][4][5], powered from accumulators charged by solar panels, or in combination with wind turbines or AC grid [6]. Of course some city HPS based lighting systems (or electric cabinets) are controlled by systems like Reverberi Enetec [19], by means of stabilizing AC line voltage and for HPS dimming -decreasing the voltage level, thus decreasing the lamp power and light output.…”

Wireless LED Streetlight Platform with Weather Monitoring and Color Temperature Control System

“…ZigBee network has been used for LED streetlight control system, including different frameworks and network node deploying ability. Authors in [8] and [9] proposed smart streetlight system which is based on turning the streetlights on or off whenever motion is detected or not under specific area. They considered power adjustable LED lamps, motion and brightness sensors as well as ZigBee based wireless communication modules.…”

Development and Experimental Investigations of Motion Detection Module for Smart Lighting System

“…-smart lightning control systems in contrast with ordinary ones monitor current status of each LED lamp and transfer information to the server that provides more efficient operation and timely failure removal; -hardware could be easily updated in accordance with installation location of the smart lightning system -busy highways, quiet suburban streets or city part alleys; -as smart lightning systems presuppose continuous monitoring and prompt troubleshooting that provides constant streets lighting and consequently influences on road safety [6]. To control smart lightning systems there are integrated systems that control lightning level, process sensor data signals and control communication with each other.…”