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dmich
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re: Smart street lighting
dmich   6/17/2013 2:19:14 PM
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I can help you with presenting a business case. We are producers of street lighting control systems. Please e-mail me for more info. sundraxexport@gmail.com export@sundrax.com

trojes
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re: Smart street lighting
trojes   1/7/2013 9:35:08 PM
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Sorry it is not the same issue, but I need information to present a business case of Intelligent Street Light Project, can you help me. Regards

Zviak
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re: Smart street lighting
Zviak   8/27/2012 2:36:26 PM
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I think that the standard of smart street light should include motion sensors. Can any of you recommend best supplier of such system?

anne-francoise.pele
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re: Smart street lighting
anne-francoise.pele   7/26/2012 9:38:12 PM
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Click on the link below to check out the collection of Design Articles, Case Studies, Product How-To articles,... related to LEDs that have been published on Smart Energy Designline. Check back frequently. The list will be updated as new articles arrive. http://www.eetimes.com/design/smart-energy-design/4371743/LED-Focus

docdivakar
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re: Smart street lighting
docdivakar   6/20/2012 7:26:23 PM
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@Bert22306: you are right, the technology to dim based on ambient lighting and/or motion / occupancy sensing is so old that the products are available as commodities. These individual sensor no doubt can be improved to perform more functions. MP Divakar

docdivakar
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re: Smart street lighting
docdivakar   6/20/2012 7:23:50 PM
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@elPresidente: your pun aside, there are benefits to using position/attitude sensing enabled light posts in the system. For example, if an area is undergoing settlement of the soil, seismic motions, etc., the sensor data can relay the current state of orientation. MP Divakar

docdivakar
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re: Smart street lighting
docdivakar   6/20/2012 7:18:26 PM
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Nice write up; though not all aspects of such a smart lighting system has been addressed, the authors describe a system that can be deployed today. It would be nice to know more on the life cycle of the products mentioned in the smart lighting system -like field replacements, expansion of more functions, additional sensing, etc. MP Divakar

gayatrikumar_1
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re: Smart street lighting
gayatrikumar_1   6/14/2012 9:06:48 PM
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The potential of this application could be best explained with statastical data of a survey on current energy wastage and possible improvements in street light availability, Maintanace charges. Figures speak louder. I our city cellular repeaters are mounted on to the street light lap posts on several flyovers and bridges. Main Control point of a cluster of lamps located at one point which could be automated this way. I think this should ramup slowy so that it doesnt cause jerk in empolyment.

Bert22306
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re: Smart street lighting
Bert22306   6/13/2012 10:53:24 PM
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Dunno, sometimes I think that what could be simple is being made unnecessarily complicated, supposedly in the name of efficiency. One example being remote control of the lights. Aren't street lights individually controlled now, via individual sensors? Those sensors perhaps can be improved, to include the same extra flexibility that the article claimed for the remote control case. Such as, dimming in brightly moonlit nights? I like the idea of remote sensing that a light is out. But our local utility has gone one step "further." Remote sensing for free. They expect the customers to call it in, AND they have made it really easy to do so. Automatic phone call, 24 hours a day. Plenty of "remote sensing," and they use an existing network to boot!!

elPresidente
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re: Smart street lighting
elPresidente   6/13/2012 5:17:54 PM
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"The last block of a smart street lighting system we’ll discuss is smart sensing. What happens if a lamppost falls..." SERIOUSLY? Does it make a sound?



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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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