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Case Study - “Lights on!” at the construction site

talento smart controls building site lighting flexibly and quickly

<p>&nbsp;<img height="534" alt="Stuebler_construction_site" width="950" src="/-/media/graesslin/newsroom/stuebler/case_study_baustelle_nacht_950x534_rgb_72dpi.ashx?la=en" /></p> <p>Source: Getty Images</p> <p>As evening falls, the lights go on at all major construction sites around the country, as if by magic. Work carries on under the bright working light of the construction lamps &ndash; time is money and deadlines have to be met if you want to avoid contractual penalties. But this sudden &ldquo;let there be light&rdquo; is not magic: in many cases it is down to highly sophisticated timer control technology. </p> <p>St&uuml;bler GmbH in Dippoldiswalde, south of Dresden, is a specialist in building site equipment. Before work can begin on a construction site, this company, founded in 1977, sets up the logistics: from site trailers for office, living and sanitary facilities, through the water supply, power and lighting technology, to the surrounding fences and safeguards. And it does this all over Germany.</p> <p>Construction site lighting is a complex field. From twilight onwards, for example, staircases, inside areas and exterior areas need to be lit for as long as people continue working in them. The exterior lighting for a building site stays on all through the night, for safety and security reasons, and the lighting for advertising signs and cranes also has to be switched separately. In other words, an individual, customised lighting plan has to be created for each site, and this then needs to be put into practice.</p> <p>&nbsp;</p> <p>&ldquo;Previously, we used twilight switches to control the lights. But there were frequent problems with these, as they needed brightness sensors, and, because of the rough conditions on a&nbsp;building site, these sensors were often damaged even during transport or when they were being set up, so they had to be replaced. Depending on where the worksite distribution board is located, the wiring can also be difficult. If one sensor fails, the lighting no longer switches reliably.&rdquo;</p> <p>&nbsp;</p> <p><img height="548" alt="Case Study Graesslin" width="404" src="/-/media/graesslin/newsroom/stuebler/case_study_elektroingenieur_404x548_rgb_72dpi.ashx?la=en" /></p> <p>Ulf Jannasch, electrical engineer</p> <p>&ldquo;The ease of programming the timers is what convinced me to use them in our worksite distribution boards. The clear, simple menu navigation via app and the ease of transferring schedules to our customers or employees on site using mobile communication tools, as well as the wireless transfer from a smartphone to the timers via Bluetooth are all major benefits to us.&rdquo;</p> <p>&nbsp;</p> <span style="color: #861f41;"></span> <p>&nbsp;</p> <h3>As night falls &ndash; the Astro function</h3> <p>St&uuml;bler now relies on talento smart timers from Gr&auml;sslin, combined with the channel extension. One of the many advantages of this solution is that, thanks to their Astro function, they do not require sensors, so none of the difficulties mentioned above apply. </p> <p>Both the talento smart classic and the talento smart system have a sunrise and sunset function, with the option of defining the location by longitude and latitude. This makes it possible to adjust the lighting dynamically to the start and end of twilight, without relying on light sensors. This eliminates the time and cost of installing and wiring the sensors, replacing them when they malfunction due to soiling or damage, and it also eliminates the need to check them.</p> <p>The benefits of the Astro function in the talento smart timers are especially apparent wherever reliable, daylight-dependent lighting is required. As twilight falls, the command goes out: Lights on!</p> <p>&nbsp;</p> <h3>Contactless programming &ndash;from the office</h3> <p>The Astro function on its own would already have been a big help to St&uuml;bler. But the talento smart family of digital timers from Gr&auml;sslin has even more to offer.</p> <p>The more of the building site lighting that can be prepared in advance and the less time that fitters have to spend on site, the more cost-effective work becomes.</p> <p>The electrical engineer creates the schedules for the timers on a PC in the office and then sends these to employees on site. </p> <p>This also enables the engineer to document, save and manage schedules, just like any other file. On the construction site, the schedule and/or changes to it are transferred via Bluetooth from a smartphone to the timer. This quick method also allows St&uuml;bler to react flexibly to any modifications the customer requests or to other situations that require a sudden change of plans.</p> <p>&nbsp;</p> <p><img height="534" alt="Stuebler case study" width="950" src="/-/media/graesslin/newsroom/stuebler/case_study_baustromverteiler_950x534_rgb_72dpi.ashx?la=en" /></p> <p>&nbsp;</p> <h3>Channel extension made easy</h3> <p>St&uuml;bler GmbH uses the talento smart S25 DIN-rail timers and their extension talento smart CE2. In total, 100 timers are installed in worksite distribution boards.<span>&nbsp; </span></p> <p>The digital timer talento smart S25 has two channels, but it can also be extended to up to eight channels with the help of the talento smart CE2 channel extension. The overall system is programmed via the talento smart S25 directly on a PC or on a mobile end device with the free app for iOS and Android. It is connected to the CE2 via Bluetooth, so no wires need to be laid. The system, consisting of talento smart S25 and talento smart CE2, synchronises the time several times per day to ensure that all channels operate synchronously.</p> <p>800 memory slots are available, allowing 80 date-specific schedules and 80 date-independent schedules to be created. A non-volatile memory (EEPROM) is used to back up schedules in the event of a power outage. A battery power reserve makes sure that the date and time are retained in the event of a power failure. The timer can be sealed, and it can be protected with a PIN to prevent unauthorised access.<span>&nbsp; </span></p> <p>When it comes to use on a building site, St&uuml;bler GmbH also has very specific requirements for the hardware. The devices have to be sturdy and water-resistant, they must be able to withstand large temperature fluctuations, and they need to survive somewhat rough transport conditions. It is also important that the timers have IP protection, in order to guarantee the power supply.</p> <p>&nbsp;



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