| 摘要 |
PURPOSE: A shopping cart system using visual rays wireless communication is provided to offer independent explain services to each client by providing information as audio, images, and texts in real time through a shopping cart terminal. CONSTITUTION: An information management server(10) stores and manages audio content, text content, and image content data. A content data transmission and reception unit(20) transmits packets to LED(Light Emitting Diode) wireless communication units(300) by adding the packets to the content data. The LED wireless communication units transmit the transmitted content data to shopping cart terminals(400). |
