By integrating Bluetooth communication into LED luminaires, Philips' "smart bulb" concept became popular. Of course, smart bulbs can be used not only for lighting and setting off the environment, but also for alternative (but potentially mainstream) commercial applications. In terms of the layout of stores and entertainment venues, Philips also has its own plan to achieve location-based services such as indoor shopping guidelines and orientation through a lighting system (Bluetooth communication) that communicates with smartphones. From this point of view, the possibilities are quite large. Philips has created a demo application that helps people find what they need in a messy store layout; on the way, it can also throw relevant promotional recommendations, similar products, or even completely different information. The current status quo is that there are still certain restrictions on indoor guidance systems. Although we have seen Qualcomm's GiMBAlbeacons (the iBeacon system used in Apple stores), the Philips version can be used to provide personalized billing, specific content and venues in concerts, and other applications that help users understand the exact location. iBeacon relies on a short-range Bluetooth connection between the phone and the store, while Philips uses the legendary "visual light communications" - a fast-flashing of the LEDs that are difficult to detect by the human eye, enabling one-way transmission of information (lights) Source to mobile phone). Normally, the receiving end needs to rely on the front camera on the device. But given that smartphones have their own way of connecting data, any information that the app needs can be obtained in the usual way (rather than through lights). This is not the first lighting system data transmission system we have seen. As early as 2011, the University of Edinburgh proposed such research; almost at the same time, the Fraunhofer Institute demonstrated the technology for the transmission of the entire film through Li-Fi. The downside is that the phone must be able to "see" the light from the VLC system. However, in view of the fact that indoor positioning systems such as iBeacon will become more popular, the interlacing of multiple technologies is enough to make up for this shortcoming. Philips said that the number of retailers currently testing VLC systems is "unknown" and does not say when a complete system will emerge.
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