Lighting : LIGHTING August-September 2017
38 LIGHTING MAGAZINE | August/September 2017 Ph: + 612 9502 1161 Fax: + 612 9502 1154 Email: email@example.com ektor.com.au EV-LEDFIRE-PRO LEDFIRE PRO Introducing a smart all-in-one emergency luminaire which is Dali v2 compliant, Self-Test Capable, Wi-Fi Upgradable and with Selectable Discharge Duration Rates, making the Ledfire range the market leader in emergency lighting. DALI CERTIFIED Connect to a DALI system for DALI testing. WIRELESS UPGRADE Automatically test and sync data to the Cloud. SELF TEST Commission the product to perform its own tests. SINGLE POINT UNIT Ektor products work as SPUs out of the box. ■ Emergency classification D63 ■ Fully compliant (AS/NZS 2293) ■ Premium Lithium batteries (LiFePO4) Ektor Half_page_Lighting_Art_&_Science_August_ad.indd 1 19/07/2017 1:22 pm integrated. The end result should be economically feasible in terms of capital and operational costs and result in a sustainable and energy saving lighting control solution (Figure 7). RELIABILITY AND DURABILITY The reliability and working of a (smart) LED lighting system is not just a switch and a light – it is a complex myriad of components and software (!) and is therefore as good as its weakest link. These are just a few of the potential weakest links: z Quality of the LED light source z Installation quality (hard/software) z Workmanship z Connections z Power supply quality z Compatibility of components z Controls and dimming technology and protocols z Protection (electrical, safety, surge, etc.) z Electrical compliance. We all have been confronted by some horror stories in the course of our projects. THE EVOLUTION OVER TIME Over time we have gone from a simple wall switch to app based lighting controls, with pre-programmed scenes sets, which we can personalise to our preferences. Physically visible switches are going invisible. At the same time we have gone from a wired world to a wireless world. Traditional lighting control companies like Lutron, Dynalite, Helvar, Crestron and others have seen new entrants in the market from a non-lighting traditional background such as Google, Apple and Gooee. Somewhere in between we have companies like Casambi for interiors or ES Systems (Esave) for exteriors, who are specialising in wireless network system controls. LiFi In this context we also have to mention the development of LiFi (Light Fidelity), a light-based WiFi system that uses light rather than radio frequency for the use of data transfer. It is said to be much cheaper than WiFi and many times faster (terabytes instead of gigabytes!). The range of the light spectrum is also many times broader than the radio frequency spectrum. The obvious draw back at this stage is that it needs the lighting to be operational to work, which in daytime situations or in interiors with lights switched off is a problem. INTERIORS Smart lighting systems in interiors involve functions such as auto-adjusting lighting levels to complement ambient daylight or presence detection. In other words light only where we need it. This is a bit more complicated than said, as we still need some basic ambient lighting for a space if not just for providing spatial recognition and providing a feeling of safety and comfort, it is not just about having lighting where you are. There is a human need to identify where you are and orientate yourself. In more sophisticated smart systems we find integration of all kinds of sensors, GPS and LiFi that are linked to apps allowing direct and dynamic interaction with the occupants of the space providing site/product information, helping with wayfinding or guiding in case of emergencies. But the system also offers monitoring options about the performance of the lighting system or feedback on system failures with the opportunity to act and adjust quickly. Pilot projects are under way in several retail/department stores around the world as well as some underground metro stations like in Paris (Figure 9). EXTERIORS In exteriors we see the application of smart wireless systems in many cities around the world who have adopted a “smart city” approach. We find particularly the big manufacturers Figure 6. Some of IKEA’s lighting controls. Figure 7. A representative diagram of a simple lighting control system with sensors. Figure 8. The basic elements of LiFi.
LIGHTING October-November 2017