LED optical communication is not just about the installation of VLC guide by US retail giant Target1

U. S. retail giant Target has nearly 1800 stores in 47 states of the United States, which is the store where the concept of discount is proposed in the United States. Target's in-store mobile navigation system allows customers to quickly find the goods they need in the maze-like supermarket through popular information transmission carriers: two-dimensional codes and lights. As shown in the above figure, after the customer enters the store, Target first sends a free coffee gift message through the lighting-based navigation technology, and the customer will continue to receive more promotional information during the stay in the store. For example, when passing through the corridor, she continuously sends instructions on the goods she needs to her mobile phone and provides product information. This technology based on digital lighting visible light communication (VLC) It is an important part of the emerging, so-called new, customer-friendly, and transformative mobile phone store experience, with a market target of 73 billion US dollars. The promotional video popped up on the Target website shows that a young shopper spends most of his time pushing the shopping cart while facing up the light after entering the store. first, the message of sending a cup of Starbucks coffee for free will pop up, and then the route to the washing products will be displayed. After she arrives, she will send the comparison information of various soaps to her mobile phone. After an efficient, relaxed and lively shopping trip, the mobile phone and its application can also help her pay at the cash register. Although the video does not mention lighting technology ( But it is not difficult to see the ubiquitous lights hanging over her). Bellevue, Wash, the system's technology provider. Indicates that the lamp is indeed part of the system and has a StoreMode navigation scheme in the store. As shown in the figure, the smart phone obtains data from the LED on the ceiling.